International
- American Civil War continues
- Abraham Lincoln reelected as President of the United States in a Overwhelming Victory.
- ‘In God We Trust’ appears for the first time on a two cent piece following Coinage Act 1864.
- Nevada is admitted as the 36th US State.
- Brazil invades Uruguay in support of Venancio Flores. Paraguay attacks Brazil.
- Second War of Schleswig – Prussia and Austria capture Holstein and Schleswig from the Danish woth 57,000 troops.
- Cyclone in Calcutta, India, kills 70,000 and virtually destroys the city.
- First Geneva Convention deals with treatment of battlefield casualties.
- International Red Cross founded in Geneva, Switzerland.
- James Clerk Maxwell discovers Microwaves (and the ready meal was born haha).
- Dr. David Livingstone returns to Africa mounting an expedition to discover the ultimate source of the Nile River.
National
- Queen Victoria is the reigning monarch, completing the longest reign from ascending to the throne as an 18 year old in 1837 till 1901.
- Viscount Palmerston is nearing the end of his second term as Liberal Prime Minister 1859 – 1865.
- Sheffield suffered a disaster when an embankment of a reservoir gave way flooding the town during the night. Uncalcable damage was done and 250 lost their lives.
- Clifton suspension bridge in Bristol designed by Isambard Kingdom Brunel, opens to the public.
- London – Houses of Parliament continued to be rebuilt following destruction by fire in 1834.
- Birmingham – Still a town that was reaching the height of its industrial trade. Did not achieve city status until 1889.
- Manchester – Caught in a Cotton Famine as a result of the US Civil War. Estimated loss to local industry is £30m. Current town hall design chosen with work commencing in 1868.
Art and sports
- Jules Verne published ‘Journey to the Center of the Earth’.
- Over-arm bowling becomes legal in cricket.