What a Surprise

My jaw dropped when I saw this.

The worldwide human population in the year AD 1 was just 170 million people. That’s less than half the current population of the USA!

  • 1000 AD: 250 million
  • 1400 AD: 343 million
  • 1600 AD: 538 million
  • 1800 AD: 1 billion
  • 1900 AD: 1.6 billion
  • 2000 AD: 6.1 billion (!)

Worth watching:

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