SortStack #3476 — 2035-12-15

By duration · Order from shortest to longest.

1. A flight from London to New York 8.2 h

   Flying west against the jet stream adds about an hour versus the return leg — eastbound flights have surfed the tailwind to under 5 hours.

2. Randy Gardner's world record for staying awake 11 days

   The 17-year-old's 1964 science-fair stunt of 11 sleepless days still stands — Guinness stopped certifying attempts as too dangerous.

3. The First World War 4.3 years

   The armistice was signed at dawn but set for 11 am — nearly 2,700 men died in those final six hours, the last just one minute before peace.

4. The construction of the Great Pyramid of Giza 20 years

   Herodotus and modern estimates agree on roughly two decades — meaning workers placed a multi-tonne block about every five minutes of daylight.

5. The Cold War 43.9 years

   Historians call it 'the long peace' — the superpowers never fought each other directly, but proxy wars touched nearly every continent.

6. The time since the last woolly mammoths died out 4K years

   A dwarf population survived on Wrangel Island until about 2000 BC — meaning mammoths were alive while the Giza pyramids were already centuries old.

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