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Thought your city was crowded? Think again. This cool video shows the world’s highest populated cities.

Here’s the video:

https://www.youtube.com/watch?v=x-wPtGgvf3A

The global population through history is:

35,000 BC – 3 MILLION
10,000 BC – 15 MILLION
1340 AD – 350 MILLION
1804 – 1 BILLION
1927 – 2 BILLION
1999 – 6 BILLION
2015 – 7.3 BILLION