Generations: The Real Differences Between Gen Z, Millennials, Gen X, Boomers, and Silents—and What They Mean for America's Future

by Jean M. Twenge

The Black kids couldn’t use the town pool, he noted. There were separate bathrooms, separate water fountains, separate waiting rooms at the doctor’s office, separate seating on the bus (WHITES TO FRONT, COLOREDS TO REAR, the sign read).