Mind-Benders of Greek & Roman History
There really was an ancient “geared computer”
Cicero records that Archimedes built a bronze mechanism that modeled the motions of the Sun, Moon, and planets. Such precision gearing was long doubted — until the Antikythera mechanism, a real geared astronomical calculator dated to roughly 150–100 BCE, was recovered from a Greek shipwreck, proving the ancient Greeks actually built them.
How we know
Archimedes 287–212 BCE; Cicero (106–43 BCE) describes the device in De re publica; the Antikythera mechanism is dated c. 150–100 BCE, recovered from a shipwreck in 1901.
One of many fact-checked wonders across eight traditions at The Spring of Wisdom.