SortStack #3551 — 2036-02-28

By year · Order from earliest to most recent.

1. Hannibal marches his army and war elephants across the Alps 218 BCE

   He set out with around 37 elephants; nearly all died in the crossing or soon after, yet he rampaged through Italy for fifteen years.

2. Temujin unites the Mongol tribes and takes the name Genghis Khan 1206

   His empire became the largest contiguous land empire in history, and genetic studies suggest millions of men today descend from his male line.

3. The Penny Black, the world's first postage stamp, goes on sale 1840

   It bore Queen Victoria's profile and no country name — and because Britain invented the stamp, British stamps still omit the country's name today.

4. The Soviet Union launches Sputnik, the first artificial satellite 1957

   The beach-ball-sized satellite weighed 83 kg and beeped for three weeks. Anyone with a shortwave radio could hear it pass overhead.

5. The Bitcoin network launches with its first block 2009

   Satoshi Nakamoto embedded a newspaper headline about bank bailouts into the very first block — a permanent timestamp and a pointed message.

6. Fire engulfs Notre-Dame cathedral in Paris 2019

   The spire fell, but the rooftop beehives survived — and the cathedral reopened five years later after a meticulous reconstruction.

← All puzzles · Play today’s SortStack