SortStack #614 — 2028-02-13

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. The population of Barbados 280K

   Became the world's newest republic in 2021, replacing the British monarch — Rihanna was declared a national hero the same day.

3. The population of Cape Verde 520K

   More Cape Verdeans live abroad than on the islands themselves.

4. Ancient Rome at the height of the empire 1M

   No European city reached a million residents again until London, around 1800.

5. The population of the United States 335M

   If American pets formed a country, its population would rival the human one.

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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