Trace the direct line from 1930s housing maps to the modern wealth gap and mass incarceration. Explore how systemic exclusion evolved from physical red lines into the invisible borders of the New Jim Crow.

The red lines weren't just about houses—they were about the very structure of opportunity. It’s a form of de jure segregation—segregation by law and public policy—disguised as a market decision.
Criado por ex-alunos da Universidade de Columbia em San Francisco
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Criado por ex-alunos da Universidade de Columbia em San Francisco

Lena: You know, Miles, I was looking at some old maps of Philadelphia from the 1930s recently, and I noticed something really jarring. Entire neighborhoods were literally traced over in bright red ink. It looked like a warning zone.
Miles: That’s exactly what it was. Those "residential security" maps were the birth of redlining. It’s wild because while we often think of Jim Crow as just "Whites Only" signs at water fountains in the South, this was a codified system of racial apartheid that moved into the very blueprints of our cities.
Lena: Right, and it wasn't just private banks being picky. It was the federal government—the Home Owners’ Loan Corporation—deciding that if a neighborhood had Black residents, it was "hazardous" for a mortgage.
Miles: Exactly. And the impact is staggering. Even today, the median wealth for Black families is just a tiny fraction of white family wealth, largely because they were locked out of homeownership for decades. It’s a direct line from those red maps to what’s being called "The New Jim Crow" today.
Lena: It’s fascinating and heartbreaking to see how these invisible lines shaped everything from wealth to healthcare. Let’s explore how these historical maps actually built the systemic exclusion we see in modern mass incarceration and the wealth gap.