1493 - Christopher Columbus goes ashore on an island he first saw the day before. He names it San Juan Bautista (later renamed Puerto Rico). 
1816 - Warsaw University is established.
1824 - Storm causes St Petersburg flood, killing 10,000
1881 - A meteorite lands near the village of Großliebenthal, southwest of Odessa, Ukraine.
1969 - Apollo 12's Conrad & Bean become 3rd & 4th humans on Moon
World Philosophy Day
International Men's Day