Three hundred years ago, 2 percent of the world’s population lived in cities. Two hundred years ago, it was 10 percent. But the Industrial Revolution… - Peter Diamandis

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Three hundred years ago, 2 percent of the world’s population lived in cities. Two hundred years ago, it was 10 percent. But the Industrial Revolution’s steam-powered punch forever altered those numbers. Between 1870 and 1920, 11 million Americans left the country for the city. In Europe, 25 million more crossed an ocean to settle, predominantly, in US cities. By 1900, 40 percent of the United States had urbanized. By 1950, it was 50 percent. By the turn of the millennium, 80 percent.