Deaths on October 3

Elias Howe, American engineer, invented the sewing machine (b. 1819)

Elias Howe Jr. (; July 9, 1819 – October 3, 1867) was an American inventor best known for his creation of the modern lockstitch sewing machine.

29 Mar

British North America Act
Queen Victoria gives Royal Assent to the British North America Act which establishes the Dominion of Canada on July 1.
1 Apr

Crown colony
Singapore becomes a British crown colony.
15 May

Imperial Bank of Canada
Canadian Bank of Commerce opens for business in Toronto. The bank would later merge with Imperial Bank of Canada to become what is CIBC in 1961.
3 Nov

Battle of Mentana
Giuseppe Garibaldi and his followers are defeated in the Battle of Mentana and fail to end the Pope's Temporal power in Rome (it would be achieved three years later).
9 Nov

Meiji Restoration
Tokugawa shogunate hands power back to the Emperor of Japan, starting the Meiji Restoration.