By “ancient history,” I will be referencing events from September 30th that occurred pre-1492 (i.e., before “Columbus sailed the ocean blue”). Note: most of these will be from the medieval world (476 AD – 1492 AD) as many earlier events don’t always have specific dates.
- Following the death of Pope Nicholas II (July 22), Anselm of Baggio, bishop of Lucca, is elected as Pope Alexander II, the first pope elected according to the election decree of Nicholas II (1061 AD).
- The empress Matilda, widow of the late Holy Roman Emperor Henry V and daughter of the late King Henry I of England, comes to England to lead her partisans against King Stephen (1139 AD).
- King Henry II of England makes peace with his sons and issues an amnesty for their supporters (1174 AD).
- Grand Prince Jaroslav II of Vladimir-Suzdal dies at the Mongol court in Karkorum (1246 AD).
- A revolt break out in Wales, under Madog ap Llywelyn, preventing King Edward I of England from invading France (1294 AD).
- The Papal legate Bertrand du Poujet takes Parma, Italy (1326 AD).
- An English force defeats Charles of Blois at Morlaix, in Brittany. King Edward III of England arrives in Brittany on October 10 and campaigns against the French force supporting Charles (1342 AD).
- The city of L’Aquila in Abruzzi, Italy, rebels, signaling a widespread baronial insurrection against King Ferrante of Naples, backed by Pope Innocent VIII (1485 AD).
Source: Volume 1 of the Chronology of World History: Prehistory — AD 1491: The Ancient and Medieval World.