What is *America Before* by Graham Hancock about?

*America Before* challenges mainstream history by arguing that advanced civilizations existed in the Americas tens of thousands of years earlier than traditionally believed. Graham Hancock presents archaeological and genetic evidence—like Amazonian earthworks aligned with stars and pre-Clovis sites such as Monte Verde—to suggest a sophisticated, forgotten culture was wiped out by a comet cataclysm around 12,800 years ago.

Who should read *America Before* by Graham Hancock?

This book is ideal for readers fascinated by alternative history, archaeology, and ancient civilizations. It appeals to those questioning conventional narratives about pre-Columbian America or interested in theories linking global ancient cultures. Critics of Hancock’s unconventional methods may find it contentious, but open-minded audiences will appreciate its interdisciplinary approach.

Is *America Before* by Graham Hancock worth reading?

Yes, if you enjoy speculative history backed by interdisciplinary research. Hancock synthesizes genetic studies, archaeological anomalies, and indigenous oral traditions to argue for a lost Ice Age civilization. While mainstream scholars dispute his conclusions, the book’s bold claims and accessible storytelling make it a thought-provoking read.

What evidence does Hancock present for advanced ancient civilizations in the Americas?

Key evidence includes: - **Pre-Clovis sites** like Chile’s Monte Verde (14,000+ years old) and Pennsylvania’s Meadowcroft, challenging the "Clovis First" model. - **Amazonian earthworks** showing sophisticated land management 8,000+ years ago. - **Star-aligned monuments** such as Serpent Mound, suggesting astronomical knowledge. Hancock argues these point to a shared cultural legacy erased by catastrophe.

How does *America Before* address the "Clovis First" theory?

Hancock systematically dismantles the Clovis First paradigm (which claims humans arrived ~13,000 years ago) using sites like Bluefish Caves (24,000+ years old) and genetic data indicating multiple migration waves from Asia, Australia, and Europe. He asserts this rewrites the timeline of human settlement in the Americas.

What role does the Younger Dryas comet hypothesis play in *America Before*?

Hancock posits a comet strike 12,800 years ago caused the Younger Dryas cooling event, wiping out an advanced civilization. He cites nano-diamond deposits and megafauna extinctions as evidence, linking this catastrophe to global flood myths and cultural resets.

How does *America Before* connect Native American cultures to ancient civilizations?

The book highlights parallels between Native American shamanic visions and Egyptian afterlife beliefs, suggesting a shared ancestral knowledge system. Hancock also documents indigenous land-management practices in the Amazon, arguing they descend from advanced prehistoric techniques.

What criticisms has *America Before* faced?

Mainstream archaeologists critique Hancock’s reliance on controversial dating methods and speculative leaps. For example, his comet hypothesis is disputed, and sites like Göbekli Tepe’s connection to the Americas remain unproven. Critics argue he cherry-picks data to fit a sensational narrative.

美洲前传

地球失落文明的关键

葛瑞姆·汉卡克

4.13(3569 Reviews)

《美洲前传》概述

格雷厄姆·汉考克（Graham Hancock）的《美洲之前》（America Before）粉碎了考古学的时间线，揭示了人类早在 130,000 年前就已居住在美洲——而非 15,000 年前。乔·罗根（Joe Rogan）称其为“瑰宝”，同时向我们发起挑战：如果在一个先进文明在有记载的历史之前曾在这里繁荣兴盛，却只留下了些许传闻，那会怎样？

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第 1 章

Ancient Mysteries Unveiled: A Journey Through America's Lost Past

Have you ever wondered what secrets lie beneath the soil of North America, predating even the oldest known civilizations? Graham Hancock's "America Before" takes us on a mind-bending journey challenging everything we thought we knew about human history. This controversial bestseller has captivated readers worldwide, including celebrities like Joe Rogan and Russell Brand, who have featured Hancock on their platforms to discuss these revolutionary ideas. The book's cultural impact has been profound, sparking heated debates within archaeological circles while simultaneously inspiring millions to question conventional narratives about humanity's past. What if an advanced civilization existed in the Americas long before we've been taught was possible? The answer might force us to completely rewrite history.

第 2 章

The Serpent's Secret: Ancient Astronomy in Ohio

Rising mysteriously from southern Ohio's landscape, Serpent Mound stretches 1,348 feet in sinuous curves, its earthen body averaging 4 feet high and 20-24 feet wide. This remarkable monument, considered "the finest surviving example of a prehistoric animal effigy mound in North America," sits within a 14-kilometer impact crater formed by a cosmic collision hundreds of millions of years ago. The site features intense magnetic anomalies, gravity disturbances, and underground caverns that Native Americans likely viewed as supernatural gateways between worlds. Approaching the mound begins somewhat anticlimactically at its coiled tail-a modest grass-covered embankment about three feet high. Only when viewed from above does the entire undulating form with its gaping jaws become visible. The scale is humbling-people appear as midgets beside this earthen dragon, revealing the mighty and uncanny power slumbering in this ancient monument. The serpent's head isn't realistic but geometric-a triangular construct with gaping jaws containing an elliptical earthwork. This "egg-shaped figure" once contained a central stone circle, since disturbed by treasure hunters. The serpent-and-egg symbol appears in ancient cultures worldwide, particularly drawing parallels to England's Avebury and Stonehenge. What makes Serpent Mound truly remarkable is its astronomical alignment. On the summer solstice, the serpent's open jaws directly confront the setting sun on this longest day. The northern ridge's natural westward curve aligns perfectly with the summer solstice sunset point-surely no accident to the ancient builders. While modern science might dismiss such alignment as mere chance, the ancients perceived earth and sky as living spirits in communion. Unlike our technological age where city lights obscure the stars, ancient peoples worldwide committed enormous resources to building monuments aligned with celestial events. The age of Serpent Mound remains contested. Initially believed to be approximately 2,000 years old and built by the Adena culture, carbon dating in 1996 suggested it was much younger-only about 920 years old. However, more thorough examination in 2014 strongly supported that it was first constructed around 2,300 years ago by the Adena, with later Fort Ancient renovations. Yet a lingering question remains: could the mound be even older? The possibility exists that 2,300 years ago, the Adena weren't creating Serpent Mound but rather renovating an already ancient structure.

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第 3 章

Shattering the Clovis Barrier: America's Deep Human Past

For decades, archaeological orthodoxy insisted humans arrived in the Americas no earlier than 13,000 years ago with the Clovis culture. This "Clovis First" paradigm, enforced by influential figures like Ales Hrdlicka of the Smithsonian, became academic dogma. Anyone challenging this timeline risked their career and reputation. The first serious crack in this narrative came from Monte Verde in Chile, where Tom Dillehay found evidence of human presence dating back 18,500 years-5,000 years older than Clovis and 8,000 miles south of the Bering Strait. For over 20 years, he endured vicious attacks from Clovis Firsters before a balanced panel finally confirmed his findings in 1997. Similar resistance met James Adovasio's work at Meadowcroft in Pennsylvania (16,000-19,000 years old) and Jacques Cinq-Mars's discoveries at Bluefish Caves in the Yukon (24,000 years old). But the most dramatic challenge came in April 2017, when Tom Demere published evidence in Nature of a 130,000-year-old archaeological site in California-ten times older than Clovis. The Cerutti Mastodon Site featured bones with spiral fractures that could only have occurred when fresh, not when fossilized, alongside hammer and anvil stones. Despite criticism about the absence of manufactured tools, Tom explained they weren't necessary for marrow extraction from a decomposing carcass. When questioned about which human species might have been present-Neanderthals, Denisovans, or anatomically modern humans-Tom suggested the site might represent a failed colonization attempt that left minimal archaeological traces. Alternatively, humans might have been present all along but remained invisible to archaeological methods that weren't looking for such ancient evidence. At the Topper site in South Carolina, archaeologist Albert Goodyear discovered evidence suggesting human presence 50,000 years ago-37,000 years before Clovis. The pre-Clovis tools were made from chert cobbles that required significant force to break open-something natural processes couldn't achieve. Over 1,000 burins were created using the distinctive "bend-break" technique, creating sharp sturdy tips possibly used for engraving bone, antler or wood. The implications are profound: humans were in the Americas for tens of thousands of years before Clovis, with vast time to develop in any direction they chose. If we never look for a lost civilization because we assume none could have existed, we won't find one.

第 4 章

The Denisovan Connection: Genetic Mysteries of the First Americans

DNA studies across the Americas have revealed something remarkable: Native American ancestors interbred with an archaic, now-extinct human species called the Denisovans. Current estimates suggest 0.13 to 0.17 percent of Native American DNA is of Denisovan origin, with some groups showing even higher levels. These discoveries come from Denisova Cave in the Altai region of southern Siberia-a site that has been continuously occupied by various human species for at least 280,000 years. Among the fascinating discoveries in Denisova Cave was a dark green chloritolite bracelet dated to between 29,200 and 48,650 years ago. What makes this artifact extraordinary is that it was manufactured using techniques "non-typical for the Paleolithic period," including sophisticated two-sided fast stationary drilling that wouldn't be seen again until the Neolithic, many millennia later. Initially dated to around 30,000 years ago, the bracelet has since been reassessed to be 50,000 years old-making its advanced manufacturing techniques approximately 20,000 years ahead of their time. But the genetic story gets even more intriguing. In 2015, researchers led by Pontus Skoglund and David Reich discovered that some Amazonian tribes, particularly the Tupi-speaking Surui and Karitiana and the Ge-speaking Xavante, carried a genetic signal "more closely related to indigenous Australians, New Guineans and Andaman Islanders than to any present-day Eurasians or Native Americans." They concluded this represented a second founding population of the Americas, which they named "Population Y" (from Ypykuera, meaning "ancestor" in Tupi). When confronted with this Australo-Melanesian genetic signal in Amazonian populations, Professor Eske Willerslev acknowledged that "based purely on the genetic data," a transpacific crossing directly to South America would be "the most parsimonious explanation"-though he added that "it does not make practical sense" given conventional archaeological understanding. Recent studies published in 2018 found Australasian DNA already present in 10,400-year-old remains from Lagoa Santa, Brazil, confirming the signal dates to the Late Pleistocene. As geneticist J. Victor Moreno-Mayar admitted about how this DNA "somehow leaped over all North America in a single bound": "We have no idea." This genetic evidence suggests a much more complex story of human migration to the Americas than previously thought-one that might include multiple routes, including possible transoceanic voyages that mainstream archaeology has been reluctant to consider.

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第 5 章

Lost Cities of the Amazon: Rewriting Rainforest History

The Amazon rainforest initially seemed an unlikely place to search for traces of an ancient lost civilization, but the anomalous Australasian DNA signal demanded deeper investigation. When Francisco de Orellana led the first European expedition down the Amazon in 1541, his chronicler Brother Gaspar de Carvajal described extensive settlements extending over 20 kilometers (comparable to Manhattan's length) and another "more than two leagues long" (between 8-13 kilometers). Despite its immense historical significance, Carvajal's journal disappeared from public view for over 300 years until rediscovered and published in 1895. Immediately, scholars began "debunking" his account, particularly his descriptions of "Amazons" (female warriors) and extensive settlements with refined arts and crafts. The academic establishment rejected Carvajal's testimony because it contradicted their theory that the Amazon had only been inhabited for about 1,000 years by small groups of hunter-gatherers in a "resource-poor" environment. Betty Meggers of the Smithsonian Institution insisted throughout her career that no pre-Columbian Amazonian settlement could have supported even 1,000 people, dismissing Carvajal's accounts as fantasy. Her influential 1971 book "Amazonia: Man and Culture in a Counterfeit Paradise" established an "environmental limitation" theory arguing that the Amazon's ecology could never have supported large-scale settlements. By the early 2000s, however, scholars like Anna Roosevelt, Neil Whitehead, and Michael Heckenberger had established that pre-Columbian Amazonian societies included "chiefdoms" or "kingdoms" with settlements housing "many thousands of people" and featured "large systems of earthworks" and "elaborate artworks and architecture." What made these large settlements possible was terra preta (Indian Black Earth), a man-made soil that transformed the naturally poor Amazonian soils into incredibly fertile growing medium. These anthropogenic dark earths cover vast areas-estimates range from 6,000 to 640,000 square kilometers-and remain productive even thousands of years after their creation. Most researchers believe terra preta formed through "incidental human activity" in middens (refuse piles), but the idea that such sophisticated soil engineering happened accidentally seems dubious. The origins of terra preta are shrouded in mystery, with most literature suggesting these anthropogenic soils emerged only 3,000 years ago. Yet closer examination reveals much older sites, with specialists from Cornell University dating them back to 8,700 years ago. This evidence points to "remarkable and precocious skill" in soil science emerging at least 8,700 years ago in the Amazon. Far from being a "pristine" natural environment, recent studies reveal the Amazon rainforest is largely a human creation. Research shows that while Amazonian forests vary significantly across regions, they share a curious pattern: of approximately 16,000 woody tree species, only 227 "hyperdominant species" (just 1.4% of all species) make up almost half the trees in any given forest. A 2017 study discovered that "domesticated species are five times more likely than nondomesticated species to be hyperdominant," and clusters of these dominant species reliably correlate with ancient archaeological sites.

第 6 章

Sacred Geometry: The Amazon's Hidden Mathematical Legacy

From its earliest archaeological appearance, Amazonian civilization represents an unbroken continuum of wisdom and cosmic principles expressed through sophisticated geometric practices implemented on a monumental scale. Despite modern science's rejection of "primitive" Amazon stereotypes, researchers were astonished to discover evidence of ancient geometric earthworks throughout the rainforest. The Amazon geoglyphs, first spotted from aircraft in 1977 but not widely reported until decades later, have drawn inevitable comparisons to Peru's Nazca Lines. Though created using different techniques-the Amazon works being continuous ditches forming precise circles, rectangles and other geometric shapes-both represent monumental geometric expressions best viewed from above. These Amazonian geoglyphs typically consist of ditches approximately 11m wide and 1-3m deep with adjacent earthen banks 0.5-1m high. Ring ditches range from 90-300m in diameter, with multiple structures often connected by embanked roads. The Fazenda Parana site exemplifies mathematical precision with two perfect squares (200m and 100m wide) connected by a 20m wide causeway, with roads extending in cardinal directions. The dating of the Amazon geoglyphs reveals how archaeological understanding can dramatically shift with new evidence. Initially in 2009, researchers concluded the geoglyphs were merely 750 years old. By 2012, new radiocarbon samples revealed that Fazenda Colorada had been "consistently occupied" from as early as AD 25 until the late fourteenth century. Even more startling, the Severino Calazans site-a massive square geoglyph with the same 230-meter footprint as Egypt's Great Pyramid and similar cardinal orientation-yielded dates of 159 BC and 171 BC, but also 1211 BC and, most controversially, 2577 BC. It's a striking coincidence that the square enclosure ditch at Severino Calazans shares the ground plan, base dimensions, and cardinal orientation of Egypt's Great Pyramid, along with a carbon date from the same epoch-around 2500 BC. This period also overlaps with Europe's megalithic era, and the circular Amazonian geoglyphs bear remarkable resemblance to British henges like those surrounding Stonehenge and Avebury. The existence of megalithic circles in the Amazon was first mentioned by Swiss zoologist Emilio Goeldi in the late nineteenth century. For forty years, the Rego Grande stone circles remained forgotten until ranch foreman Lailson Camelo da Silva rediscovered them in the 1990s while clearing land for pasture. Further research identified approximately 200 prehistoric sites across Amapa state, with 30 containing megalithic monuments. In 2005, archaeologists began comprehensive surveys, documenting a principal stone circle 30 meters in diameter consisting of 127 upright megaliths weighing up to 4 tons each. The Rego Grande stone circle shares a key astronomical "meme" with Stonehenge and Serpent Mound-solstitial alignments. While Stonehenge and Serpent Mound primarily honor the summer solstice, Rego Grande focuses on the winter solstice. One megalith uses shadow effects to track the sun's path throughout this day, while two other granite blocks (one with an artificial hole cut through it) align to mark the rising point of the winter solstice sun.

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第 7 章

Visions and Vessels: The Shamanic Origins of Geometric Knowledge

Why did the ancients create these colossal geometric earthworks across the Amazon? While early Western scientists attempted to explain them as defensive structures, this theory quickly collapsed without supporting evidence. The current consensus views them as ritual, spiritual, or ceremonial spaces, though this merely states the obvious without explaining their purpose. Finnish scholars Sanna Saunaluoma and Pirjo Kristiina Virtanen have pioneered a fresh approach by consulting indigenous peoples still living in the Amazon. When they brought Manchineri tribal members to visit the Jaco Sa geoglyph, the visitors "immediately reported feeling sensations of being in an ancient ritual atmosphere" and mentioned their ancestors had spoken of such places. The shaman stands at the heart of indigenous spiritual systems, possessing the ability to enter and control altered states of consciousness. Unlike Western knowledge acquisition through study, shamans gain insight through trance, visions, and "soul-journeys" to otherworlds. This shamanistic worldview holds that our material world is interpenetrated by invisible realms inhabited by supernatural beings with whom humans must interact. In my seventy-plus ayahuasca sessions since 2003, I've consistently experienced what I call a "geometrical pulse"-visions of "multiple square screens," "banks of windows," and "complex interlaced patterns of geometry" with "rectangles outlined in black." These geometric motifs appear remarkably similar to the patterns found in the Amazon geoglyphs, suggesting a profound connection between visionary experience and monumental earthworks. The geometric patterns seen in ayahuasca visions manifest across Amazonian cultures in various forms. The Tukano create similar designs in sand paintings, on fabrics, instruments, houses and communal malocas. When asked to draw their ayahuasca visions, they produced triangles with vertical lines ending in spirals, rhomboids, rectangular designs with parallel lines, zigzags, nested rectangles, and catenary curves-identical to patterns they paint on rock faces. For Tukano shamans, the ayahuasca journey involves a spiritual ascension to the Milky Way. This celestial pathway isn't immediately accessible to novices, who must gradually learn to rise higher with each experience-first barely over the horizon, then to positions corresponding to the sun at 9 a.m., 10 a.m., and eventually reaching the zenith in "a single, soaring flight." Yet the Milky Way serves merely as a way station, with the true entrance to the Otherworld lying beyond. When drinking the potion, the individual symbolically "dies," their spirit returning to "the uterine regions of the Beyond," only to be reborn upon returning from the trance.

第 8 章

Cosmic Architecture: Mounds, Mathematics, and the Mississippi Valley

From Manaus in the Amazon basin to St. Louis in the Mississippi Valley stretches a journey of 6,000 kilometers-an 11-hour flight today, but a far more challenging overland trek in ancient times. While evidence confirms contact between South and North American peoples-through genetics, linguistics, and shared crops-these connections appear random and infrequent rather than sustained. Yet stunningly similar earthworks with matching geometric themes and scale appear in both river basins. Monks Mound at Cahokia rivals the Great Pyramid with its 14-acre footprint, standing as the tallest prehistoric earthen monument in the Americas. It forms the centerpiece of Cahokia's complex that includes over 100 subsidiary mounds, a wooden post circle ("Woodhenge"), a central plaza, and an 800-meter causeway set precisely 5 degrees east of true north. This "Rattlesnake Causeway" defines Cahokia's principal axis, with all structures positioned in strict relation to it. Cahokia's geometric precision extends to its "Woodhenge," a circle of massive wooden posts 850 meters west of Monks Mound that created powerful visual alignments. During equinoxes, an observer at Woodhenge's center would see the sun rise directly above Monks Mound's southern terrace, establishing an east-west solar line across the entire complex. Additional posts marked summer and winter solstice sunrises. But why offset Cahokia's main axis by 5 degrees from true north? William Romain proposes an elegant solution: the builders used a "root-2 rectangle" (constructed by extending a square's sides to the length of its diagonal) rotated 5 degrees eastward. This rotation aligns the rectangle's diagonals with crucial celestial events-summer solstice sunrise, winter solstice sunset, and the moon's maximum southern rising and northern setting positions. Two of the most significant surviving examples of lunar-aligned earthworks are the High Bank Works near Chillicothe and Newark Earthworks about 60 miles farther northeast. Both qualify as true geoglyphs in the Amazonian sense-formed by embankments and ditches on such massive scale that their shapes can only be properly discerned from the air. Newark and High Bank earthworks have an almost technological appearance, resembling gigantic printed circuit boards or wiring diagrams. Both sites feature principal geoglyphs combining circles with octagons formed by large earthen embankments about 1.7 meters high and 12 meters wide at the base. Newark's Great Circle, with its interior ditch and central three-lobed "Eagle Mound," has a diameter of 365.9 meters-comparable to British Neolithic henges like Avebury. The geometric precision of these earthworks reveals remarkable mathematical sophistication. Most striking is that although built more than 60 miles apart, the main axis of High Bank Works is oriented at precisely 90 degrees to Newark's Observatory Circle-Octagon axis, suggesting deliberate geometric and astronomical connection between the only two sites in North America with circle-octagon combinations.

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第 9 章

Poverty Point: America's Ancient Wonder

At Poverty Point in northeast Louisiana stands the second largest earthwork mound in North America. Built around 1430 BC (a century before Tutankhamun's reign), it stands 72 feet high with a base measuring 710 by 660 feet and containing 8.4 million cubic feet of earth. Unlike Cahokia's larger Monks Mound, which was built by agricultural societies 2,500 years later, Poverty Point was constructed entirely by hunter-gatherers, with its oldest element dating to 1740 BC. The site's defining feature is its complex of six concentric ridges forming a half-octagon or C-shape with a diameter of 3/4 mile. Originally up to 9 feet high, these ridges total almost 7 miles when combined, though agricultural plowing has reduced most to just a few inches high. In 1980, William Haag and astronomer Kenneth Brecher proposed that the site was a massive solstice marker, with avenues through the ridges pointing to summer and winter solstice sunsets. Just 2.6 kilometers south of Poverty Point's Mound E lies Lower Jackson Mound, dated between 3955-3655 BC-3,000 years older than Poverty Point itself. Archaeologists have discovered that "the entire layout of Greater Poverty Point is calibrated to the position of Lower Jackson," with all principal measuring grids passing through it. This suggests remarkable cultural continuity across millennia, similar to how Coles Creek builders positioned Mound D 2,000 years after Poverty Point's abandonment to create a winter solstice sunrise alignment. The period between 6,000 and 5,000 years ago when Lower Jackson Mound was built coincided with the emergence of early civilizations in Mesopotamia and Egypt. Like those Old World civilizations with their mastabas and tells, North America experienced a coordinated burst of monumental construction during this era. Watson Brake has received the most thorough scientific and archaeoastronomical scrutiny of all the ancient mound sites in the Lower Mississippi Valley. The complex consists of eleven confirmed mounds connected by embankments approximately 20 meters wide and 1 meter high. The enclosed plaza covers 9 hectares and appears artificially leveled. Initial occupation began around 4000 BC, with the first minor earthworks appearing around 3500 BC, and major construction commencing around 3350 BC. Norman Davis demonstrated in 2012 that Watson Brake contains five separate, parallel alignments targeting the summer solstice sunset (and winter solstice sunrise) at precisely the azimuth positions they would have appeared in 3400 BC. Additionally, four equinoctial alignments run through the site. These alignments clearly preceded construction and formed the master plan for the entire site design.

第 10 章

Cosmic Journeys: The Soul's Path Through the Stars

At Moundville in Alabama, I discovered striking parallels between ancient Egyptian and Native American afterlife beliefs. The Mississippian "Rattlesnake Disk" features a hand-and-eye motif that represents Orion-with the constellation's belt forming the wrist of a celestial hand. According to Native American traditions, the dead enter the afterlife through an opening marked by this hand in the sky, with a portal in its palm leading to the path of souls. The similarities with Egyptian beliefs are remarkable: both traditions connect Orion to the land of the dead, involve perilous afterlife journeys along the Milky Way, include trials the soul must face, and emphasize creating earthly representations of the celestial realm of the dead. In ancient Egypt, the soul was viewed as having multiple aspects, including the Ka (the "double" that remains near the tomb), the Ba (depicted as a bird that can fly between realms), and several other components. Despite this complexity, these aspects essentially reflect a dualistic view of human nature-one spiritual aspect that is potentially eternal and can ascend to the stars (particularly Orion), and another that remains earthbound with the corpse. Native North American peoples held remarkably similar soul concepts. Across diverse tribes, anthropologist Ake Hultkrantz identified "soul dualism" as the predominant belief system throughout North America. This typically manifested as a "free-soul" (representing the person's consciousness that could travel independently) and a "body-soul" (the life force animating the physical form). Both ancient Egyptians and Native Americans believed souls journeyed westward after death. In both traditions, souls could temporarily leave the body during dreams or comas, with death only confirmed when the free-soul failed to return. For both cultures, the journey began with proper mortuary rites, followed by travel westward toward the setting sun. At this western edge, souls gathered at a transitional place, awaiting the right moment after nightfall to continue their celestial journey. In ancient Egypt, Orion represented Osiris, Lord of the Dead. The soul's journey required passing through a celestial portal associated with Orion, with funerary texts repeatedly urging souls to "reach the sky as Orion" and "go upon the ladder with my foot on Orion." In Native American cosmology, the same constellation was seen as a "Hand" (with Orion's belt forming the wrist), containing a portal in its palm. The Orion Nebula, depicted in Mississippian iconography as the "eye" in the "hand-and-eye" motif, was actually a "hole in the sky" through which the free-soul must leap to access the afterlife.

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第 11 章

The Great Cataclysm: Evidence of Cosmic Impact

In May 2017, Graham Hancock visits the Murray Springs Clovis site in Arizona with geophysicist Allen West. This rich archaeological site yielded the remains of "Eloise," a mammoth butchered by Clovis hunters 12,800 years ago. The site was excavated in the 1960s by Vance Haynes, who identified a distinctive "black mat" soil layer that covered the Clovis remains and extinct megafauna. This layer marks "a major climate change from the warm dry climate of the terminal Allerd to the glacially cold Younger Dryas." Allen West explains that evidence from the Greenland ice cores shows the Younger Dryas impact wasn't a single event but a 21-year period of cosmic bombardment between 12,836 and 12,815 years ago. This catastrophe likely involved fragments from a massive 100-kilometer diameter comet that had entered Earth's orbit around 30,000 years ago before undergoing fragmentation about 20,000 years ago. The resulting debris formed the Taurid meteor stream-a tubular formation 30 million kilometers in diameter that Earth still passes through twice yearly. In 2015, researchers working on the Younger Dryas Impact Hypothesis formally established the Comet Research Group (CRG), now comprising 63 scientists from 55 universities across 16 countries. The evidence from their studies is compelling: all eleven archaeological sites across North America showed significant platinum peaks averaging 12 times higher than normal crustal abundance and 3-66 times higher than levels found in Greenland, further confirming North America as the cataclysm's epicenter. A 2018 Journal of Geology study led by Wendy Wolbach revealed that approximately 9% of Earth's total terrestrial biomass-covering 10 million square kilometers, an area twice the size of the Amazon rainforest-burned in extraordinary wildfires at the Younger Dryas onset. Ice cores from Greenland, Antarctica and Siberia show unprecedented peaks in combustion aerosols, representing the most anomalous episode of biomass burning in at least 120,000 years. The Younger Dryas impact triggered catastrophic extinctions worldwide, with North America suffering the most severe losses-thirty-five genera of large mammals disappeared. The extinction event eliminated iconic Ice Age creatures that had thrived for millions of years-horses, camels, mammoths, mastodons, giant ground sloths, saber-tooth tigers, short-faced bears, and dire wolves. Human populations were similarly devastated. The technically accomplished Clovis culture vanished abruptly, and archaeological evidence shows a sudden 50 percent drop in projectile point production across the southeast. Carbon-14 dating reveals "a 200-year-long 80 percent decline" in human activities at the Younger Dryas onset, with population levels gradually rebounding over the following 900 years. In California, human activity ceased entirely between 12,800 and 12,200 years ago.

第 12 章

America: The Key to Earth's Lost Civilization

Since beginning work on Fingerprints of the Gods in the early 1990s, I've advocated for an advanced Ice Age civilization destroyed in the cataclysms ending that epoch. The parallels between Mississippian and ancient Egyptian afterlife concepts are too detailed to be coincidental, pointing not to direct influence but to inheritance from a common source. I've consistently maintained that this lost civilization was erased around 12,500 years ago-remarkably close to the now scientifically established date of 12,800 years ago for the comet impacts that triggered the Younger Dryas. North America has been wrongly seen as an uninhabited archaeological vacuum awaiting the arrival of culture from elsewhere. With evidence of human presence in the Americas 130,000 years ago-more than twice as long as humans have been in Europe-there was ample time for civilization to develop before the Younger Dryas cataclysm. The Americas offered unique conditions: a vast landmass cut off from the rest of the world by oceans and ice sheets, creating a paradise of abundant resources where the earliest Americans could follow a different evolutionary path from other human societies. If the Younger Dryas cataclysm erased a prehistoric civilization, what might it have been like? Based on descendant cultures, it likely had profound spiritual explorations of death, sophisticated maritime technology (evidenced by ancient maps showing Ice Age geography), and mastery of geometry and astronomy. I propose not nuclear power or mechanical advantage, but consciousness-based technologies. The inexplicable architectural achievements at sites like Egypt's Great Pyramid, Baalbek's Trilithon, and Sacsayhuaman in Peru suggest technologies beyond our understanding. I propose that the lost Ice Age civilization mastered psi powers like telepathy, telekinesis, remote viewing, and healing-abilities still associated with master shamans. This Native American civilization likely developed between the Cerutti mastodon scavenging 130,000 years ago and the Younger Dryas cataclysm 12,800 years ago. Their sciences would have emerged from shamanic practices rather than mechanical advantage. Our modern society marginalizes death, treating it as something to avoid thinking about and postpone indefinitely. Yet ancient traditions warn that unwillingness to die produces unfavorable results. The Tibetan "Science of Death" offers profound insights into the afterlife journey. In the Bardo (afterlife realm), the soul possesses heightened intelligence, extraordinary concentration, clairvoyance, teleportation, and the ability to be transformed by thought alone. This lost civilization, with its shamanic origins, focused not on material wealth but on soul perfection through vision quests and right living. It likely explored parallel dimensions to prepare initiates for death's journey-a quest interrupted by the Younger Dryas comet impact 12,800 years ago. Survivors attempted to preserve these teachings among hunter-gatherer cultures, planting "sleeper cells" of knowledge that could later reactivate. Thousands of myths across every continent speak of an advanced prehistoric civilization destroyed by cataclysm. Many suggest humans brought this disaster upon themselves through arrogance, cruelty, and disrespect for the earth. An Ojibwa tradition speaks directly to this, describing a comet that "burned up the earth" in ancient times because "things were wrong with nature" and "people had abandoned the spiritual path." The tradition warns this comet will return-both as destruction and restoration. The concept for America Before crystallized during my December 2016 visit to the Standing Rock Sioux protest camp against the Dakota Access Pipeline. The Standing Rock protest embodied a crucial message: we urgently need to change our relationship with Earth and heed ancient wisdom preserved by First Americans. Without restoring this balance, "we're not going to have anywhere to live in the next hundred years." Some 12,800 years ago, this balance was catastrophically disrupted, erasing a key chapter of human history. If our own chapter is similarly lost, will future myths tell how through greed, conceit, recklessness, hatred and lack of love, we conspired in our own downfall?

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《美洲前传》核心主题

lost ancient civilizations
pre-clovis archaeology
archaeoastronomy and earthworks
ice age migrations
alternative human history

《美洲前传》经典语录

The answer might force us to completely rewrite history.
The scale is humbling.
Anyone challenging this timeline risked their career and reputation.
If we never look for a lost civilization...we won't find one.
The most parsimonious explanation does not make practical sense

《美洲前传》主要人物

Graham HancockAuthor and researcher of ancient civilizations
Tom DillehayArchaeologist who discovered Monte Verde in Chile
Tom DemereResearcher of the 130,000-year-old Cerutti site
Albert GoodyearArchaeologist who found evidence at the Topper site
Ales HrdlickaSmithsonian figure who enforced Clovis First dogma

关于作者

葛瑞姆·汉考克（Graham Bruce Hancock）是畅销书《美洲之前：地球失落文明的关键》（America Before: The Key to Earth’s Lost Civilization）的作者，也是一位具有启发性的替代历史研究者和记者，因其关于史前高等文明的争议性假说而闻名。汉考克出生于爱丁堡，在达勒姆大学获得社会学学位，他的职业生涯始于新闻业，曾任职于《经济学人》（The Economist）、《卫报》（The Guardian）和《泰晤士报》（The Times）。

他转向探索人类远古过去的经历催生了《上帝的指纹》（Fingerprints of the Gods）和《上帝的魔术师》（Magicians of the Gods）等开创性著作。这些作品主张，一个先进的冰河时代社会因一场宇宙灾难而毁灭，这一观点重塑了全球考古学的辩论。

汉考克的工作融合了考古学、地质学和神话，旨在挑战主流叙事，这也是《美洲之前》的核心主题，该书调查了前哥伦布时期美洲神秘的起源。作为《乔·罗根体验》（The Joe Rogan Experience）和 TEDx 等平台的常客，他还创作了 Netflix 系列纪录片《远古启示录》（Ancient Apocalypse），触达了全球数百万观众。

尽管他的观点受到学术界的质疑，但却激发了公众对失落文明的痴迷。汉考克的其他著名著作，包括《海底世界》（Underworld）和《超自然》（Supernatural），进一步巩固了他作为推测历史领域领军人物的地位。《远古启示录》在全球流媒体平台大获成功，彰显了他经久不衰的影响力。

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开启你的学习之旅，就是现在

第 12 章

美洲前传

概述《美洲前传》概述

一本书，多种聆听方式。

Ancient Mysteries Unveiled: A Journey Through America's Lost Past

The Serpent's Secret: Ancient Astronomy in Ohio

边听边看，每个词都清晰呈现

Shattering the Clovis Barrier: America's Deep Human Past

The Denisovan Connection: Genetic Mysteries of the First Americans

从 《美洲前传》中收获更多

Lost Cities of the Amazon: Rewriting Rainforest History

Sacred Geometry: The Amazon's Hidden Mathematical Legacy

边听边看，每个词都清晰呈现

Visions and Vessels: The Shamanic Origins of Geometric Knowledge

Cosmic Architecture: Mounds, Mathematics, and the Mississippi Valley

从 《美洲前传》中收获更多

Poverty Point: America's Ancient Wonder

Cosmic Journeys: The Soul's Path Through the Stars

边听边看，每个词都清晰呈现

The Great Cataclysm: Evidence of Cosmic Impact

America: The Key to Earth's Lost Civilization

你已读完 《美洲前传》

《美洲前传》核心主题

《美洲前传》经典语录

《美洲前传》主要人物

关于作者

下载《美洲前传》摘要

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关于本书的常见问题

What is America Before by Graham Hancock about?

Who should read America Before by Graham Hancock?

Is America Before by Graham Hancock worth reading?

What evidence does Hancock present for advanced ancient civilizations in the Americas?

该学习计划的一部分

Lost Atlantis history

发现更多

1,000,000+ curious minds.

1,000,000+ curious minds.

一本书，多种聆听方式。

Ancient Mysteries Unveiled: A Journey Through America's Lost Past

The Serpent's Secret: Ancient Astronomy in Ohio

边听边看，每个词都清晰呈现

Shattering the Clovis Barrier: America's Deep Human Past

The Denisovan Connection: Genetic Mysteries of the First Americans

从 《美洲前传》中收获更多

Lost Cities of the Amazon: Rewriting Rainforest History

Sacred Geometry: The Amazon's Hidden Mathematical Legacy

边听边看，每个词都清晰呈现

Visions and Vessels: The Shamanic Origins of Geometric Knowledge

Cosmic Architecture: Mounds, Mathematics, and the Mississippi Valley

从 《美洲前传》中收获更多

Poverty Point: America's Ancient Wonder

Cosmic Journeys: The Soul's Path Through the Stars

边听边看，每个词都清晰呈现

The Great Cataclysm: Evidence of Cosmic Impact

America: The Key to Earth's Lost Civilization

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《美洲前传》概述

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从《美洲前传》中收获更多

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