September 3. September 3 is the 246th day of the year (247th in leap years) in the Gregorian calendar; 119 days remain until the end of the year. Events Pre-1600 36 BC ??? In the Battle of Naulochus, Marcus Vipsanius Agrippa, admiral of Octavian, defeats Sextus Pompey, son of Pompey, thus ending Pompeian resistance to the Second Triumvirate. 301 ??? San Marino, one of the smallest nations in the world and the world's oldest republic still in existence, is founded by Saint Marinus. 590 ??? Consecration of Pope Gregory I (Gregory the Great). 673 ??? King Wamba of the Visigoths puts down a revolt by Hilderic, governor of N??mes (France) and rival for the throne. 863 ??? Major Byzantine victory at the Battle of Lalakaon against an Arab raid. 1189 ??? Richard I of England (a.k.a. Richard "the Lionheart") is crowned at Westminster. 1260 ??? The Mamluks defeat the...