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

As P. J. O’Rourke (b. 1947) wrote, “You’re not a baby boomer if you don’t have a visceral recollection of a Kennedy and a King assassination, a Beatles breakup, a U.S. defeat in Vietnam, and a Watergate.”