- Feb 24 US House of Representatives vote 126 to 47 to impeach President Andrew Johnson
- Apr 11 The Shogunate is abolished in Japan.
- Apr 13 Abyssinian War ends as British and Indian troops capture Magdala and Ethiopian Emperor commits suicide
- May 30 "Decoration Day", later called Memorial Day is first observed in Northern US states
- Jun 23 Christopher Latham Sholes patents the "Type-writer"
- Dec 25 Despite bitter opposition, US President Andrew Johnson grants unconditional pardon to all persons involved in Southern rebellion (Civil War)
French Astronomer Pierre Janssen discovers helium in solar spectrum during eclipse
On August 18, 1868
The first traffic lights are installed outside the Palace of Westminster in London. Resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.
On December 9, 1868