Human population through time

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– Modern humans evolved in Africa about 200,000 years ago.

– About 100,000 years ago, we began migrating across the globe.

– About 45,000 yerar ago, our population remained low – probably less than 1 million people.

– With the advent of farmint, growth picked up (15,ooo).

– By AD 1, world population reached approximately 170 million people.

– If current trends continue, global population will peak at 11 billion around 2100.