What happened on 28 November?

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

1. 1660 Founding of the Royal Society of London Natural philosophers meeting at Gresham College resolve to found a society for experimental learning; chartered by Charles II in 1662 as the Royal Society.
2. 1820 Born: Friedrich Engels German industrialist and socialist; co-author of the Communist Manifesto.
3. 1990 John Major's premiership Black Wednesday, Maastricht, the Northern Ireland peace process and a party at war with itself over Europe.
4. 1943 Tehran Conference First Big Three summit (Roosevelt, Churchill, Stalin); agreed on Overlord and post-war shape.
5. 1520 The Pacific crossing No European has any idea how wide the new ocean is: the fleet sails 98 days without fresh food, eating sawdust, leather and rats as scurvy kills a score of men. When they finally r
6. 1908 Born: Claude Lévi-Strauss Anthropologist; founded structural anthropology.
7. 1876 The Porfiriato For thirty-five years Porfirio Díaz gives Mexico railways, foreign investment and order — and rigged elections, debt peonage and land stripped from villages into vast haciendas. 'P
8. 1911 Zapata's Plan of Ayala Zapata issues the Plan of Ayala demanding land reform, splitting from Madero and shaping the Mexican Revolution.
9. 1443 Skanderbeg's revolt The Albanian lord George Kastrioti defies the Ottomans for 25 years, becoming a lasting symbol of resistance.
10. 2010 WikiLeaks Cablegate WikiLeaks publishes a quarter-million secret US diplomatic cables, a landmark in mass leaking and digital-age transparency.
11. 1811 Beethoven's Emperor Concerto Piano Concerto No. 5, composed as Napoleon's guns bombarded Vienna; its grandeur later earned it the nickname 'Emperor'.
12. 1909 Rachmaninoff's Piano Concerto No. 3 Written for his first American tour, the fearsomely difficult 'Rach 3' is premiered by Rachmaninoff himself in New York with Walter Damrosch conducting.