What happened on 20 October?

13 events from the Ever-When timeline, ranked by how much they mattered.

1. 1973 Sydney Opera House Jørn Utzon's sail-roofed opera house on Sydney Harbour.
2. 1962 Sino-Indian War China defeats India in a brief border war in the Himalayas.
3. 1973 The Saturday Night Massacre Ordered to fire the special prosecutor demanding his tapes, Attorney General Elliot Richardson resigns rather than comply; so does his deputy. The third in line does it — and the b
4. 1854 Born: Arthur Rimbaud Precocious Symbolist poet who abandoned literature at 21.
5. 1827 Battle of Navarino A British, French and Russian fleet destroys the Ottoman-Egyptian navy in Navarino Bay — the last great battle of sail, and the guarantee of Greek independence.
6. 1962 Kennedy chooses a blockade of Cuba Cutting short a campaign trip with a diplomatic 'cold', Kennedy takes ExComm's split verdict on the Soviet missiles in Cuba — air strike or naval blockade — and picks the blockade,
7. 2011 Death of Gaddafi Fleeing Sirte under NATO air attack, the colonel is dragged from a drainage pipe by rebel fighters and killed on camera within the hour — the only ruler the Arab Spring ends with a
8. 1740 Reign of Maria Theresa Fought the War of the Austrian Succession to keep her inheritance, lost Silesia, and rebuilt the Habsburg state around it.
9. 1991 Brenda's Got a Baby (2Pac) Tupac's debut solo single, a story of a 12-year-old mother.
10. 1995 Dilwale Dulhania Le Jayenge Shah Rukh Khan and Kajol's NRI romance becomes the longest-running film in Indian cinema history, screening in a Mumbai theatre for over 25 years.
11. 1740 Maria Theresa inherits the Habsburg lands Charles VI dies and his daughter inherits under the Pragmatic Sanction; within two months Frederick the Great invades Silesia.
12. 1828 Clara Wieck's Gewandhaus debut The nine-year-old prodigy, trained relentlessly by her father, gives her first public performance in Leipzig — the start of a sixty-year career as Europe's leading pianist.
13. 1496 Philip the Handsome marries Joanna of Castile Maximilian's son marries Joanna, later heiress of Castile and Aragon; their son Charles will inherit Spain, the Netherlands, Austria and the Americas in a single person.