Gregorian Calendar Implemented: 10 Days Disappear
October 6, 1582, never existed in Italy, Poland, Portugal, or Spain. Pope Gregory XIII's calendar reform jumped from October 4 to October 15, eliminating ten days. The Catholic Church had been celebrating Easter on the wrong date for centuries because the Julian calendar drifted. Protestant countries refused to adopt the fix for 170 years. They'd rather be astronomically wrong than agree with Rome.
October 6, 1582
444 years ago
Key Figures & Places
What Else Happened on October 6
Die Einnahme Babylons durch das Heer des achämenidischen Königs Kyros II. und die Gefangennahme Königs Nabonid beenden sowohl das Neubabylonische Reich als auch…
The Cimbri annihilated two Roman armies at Arausio, killing 80,000 soldiers and 40,000 camp followers. It was Rome's worst defeat since Cannae. The disaster hap…
Two Roman armies suffered a catastrophic annihilation at the hands of the Cimbri and Teutones near the Rhône River, losing an estimated 80,000 soldiers. This di…
Tigranes the Great watched his army collapse from a hilltop. He'd brought 250,000 men to fight Lucullus and his 18,000 Romans outside Tigranocerta. The Romans c…
Roman legions under Lucullus shattered the Armenian army at the Battle of Tigranocerta, dismantling the regional hegemony of King Tigranes the Great. This victo…
October 6 was an unlucky day in Roman superstition—the anniversary of the Battle of Arausio. Lucullus attacked Tigranes anyway and routed an Armenian army five …
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