Comments by "pongop" (@pongop) on "Why is Tokyo the world's largest urban area? (38 million people!)" video.

  1. This is one of your best videos! As a history/government/social science teacher, I may be biased though.
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  2. I was born in that hospital on the Fairfax, VA map
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  3. I was in southern Germany. Beautiful place. Interesting to know that it's very organized.
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