- 240 BC 1st recorded perihelion passage of Halley's Comet.
- 1856 Russia signs Peace of Paris, ending the Crimean War
- 1867 US buys Alaska from Russia for $7,200,000 (2 cents an acre - Seward's Folly)
- 1870 15th Amendment to the US constitution is adopted, guarantees right to vote regardless of race
- 1959 Dalai Lama flees China and is granted political asylum in India
- 1972 Northern Ireland's Government and Parliament dissolved by the British Government and 'direct rule' from Westminster is introduced
Vincent van Gogh's "Sunflowers" sells for a record 22.5 million pounds ($39.7 million)
On March 30, 1987