September 2, 1666 - The Great Fire of London began in a baker's shop in Pudding Lane. It rapidly spread throughout the city, finding easy fuel in the closely built, wooden medieval buildings. It destroyed most of London's buildings and houses. Amazingly, Although 13,000 buildings were destroyed, including St. Paul's Cathedral, in the four-day blaze only six people died. The city was rebuilt (obviously) but the medieval style of the city was gone and Charles II ordered that no buildings in London were allowed to have thatched roofs. The British author Samuel Pepys gives lots of interesting details in his Diary.
September 2, 1945 - World War II officially ended aboard the USS Missouri in Tokyo Bay when Japanese officials surrendered on behalf of their country.