SortStack #1083 — 2029-05-27

By population · Order from fewest to most people.

1. Sumo wrestlers in Japan's top makuuchi division 42

   Exactly forty-two slots exist; wrestlers are promoted or demoted after every single tournament.

2. San Francisco — the city proper 810K

   Smaller in population than Indianapolis, despite its outsized cultural footprint.

3. The population of Bosnia and Herzegovina 3.2M

   Its coastline is just 20 km long — one of the shortest of any coastal country.

4. Greater Cairo, Egypt's capital region 22M

   Africa's largest metro area sits beside pyramids that were already ancient to Cleopatra.

5. Greater Tokyo, the world's largest metro area 37M

   More people than all of Canada, in an area you can cross by train in two hours.

6. Every human alive when Napoleon crowned himself emperor 1B

   It took all of human history to reach the first billion — and only 220 more years to add seven more.

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