SortStack #793 — 2028-08-10

By year · Order from earliest to most recent.

1. The Parthenon is completed atop the Acropolis in Athens 432 BCE

   It contains almost no perfectly straight lines: the columns bulge and the base curves slightly upward, optical tricks that make it look flawless.

2. Mount Vesuvius erupts and buries the Roman city of Pompeii 79

   The famous 'bodies' of Pompeii are plaster casts: excavators poured plaster into hollows left in the ash where victims' bodies had decayed.

3. Emperor Hadrian orders a great wall built across northern Britain 122

   The wall ran about 117 km from coast to coast and took roughly six years to build — soldiers' letters from its forts survive, including a birthday party invitation.

4. Humans walk on the Moon for the first time 1969

   The Apollo guidance computer had less processing power than a modern pocket calculator — and alarms from it nearly aborted the landing.

5. Nelson Mandela walks free after twenty-seven years in prison 1990

   Four years after his release he was elected South Africa's president — and he later joked that he was 'a pensioner taking up a new job' at age 75.

6. Hijacked airliners destroy the Twin Towers in New York 2001

   The attacks grounded all civilian flights over the US for days — the first time in aviation history American skies were essentially emptied.

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