SortStack #2818 — 2034-02-25

By duration · Order from shortest to longest.

1. A single sneeze, from sharp inhale to achoo 1.5 sec

   A sneeze can launch droplets several metres, and you can't sneeze with your eyes open without effort — the blink is part of the reflex.

2. Usain Bolt's 100 m world record run 9.6 sec

   Bolt ran 9.58 in Berlin 2009, hitting a top speed of 44.7 km/h — faster than the speed limit on many city streets.

3. An average swim across the English Channel 13.5 h

   Fewer people have swum the Channel than have climbed Everest — and rules forbid wetsuits, allowing only goggles, a cap, and grease.

4. The era of the Crusades, from the first to the fall of Acre 194.9 years

   Nine major crusades spanned 195 years — and the Fourth never reached the Holy Land at all, sacking Christian Constantinople instead.

5. The Holy Roman Empire, from Otto the Great to its dissolution 844 years

   Voltaire quipped it was 'neither holy, nor Roman, nor an empire' — yet it lasted 844 years before Napoleon finished it off in 1806.

6. The age of the oldest known figurative cave painting (Sulawesi) 51.1K years

   The Indonesian rock art depicts wild pigs and human-like figures — painted tens of thousands of years before Lascaux's famous bulls.

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