This day in history:
- 2005 – The Sudan People's Liberation Movement and the Government of Sudan sign the Comprehensive Peace Agreement to end the Second Sudanese Civil War.
- 1816 – Humphry Davy tests his safety lamp for miners at Hebburn Colliery.
- 1806 – Admiral Horatio Lord Nelson receives a state funeral and is interred in St Paul's Cathedral.
- 1992 – The first discoveries of extrasolar planets are announced by astronomers Aleksander Wolszczan and Dale Frail. They discovered two planets orbiting the pulsar PSR 1257+12.
Births:
- 1728 – Thomas Warton, English poet, historian, and critic (d. 1790)
- 1935 – Bob Denver, American actor (d. 2005)
- 1839 – John Knowles Paine, American composer and academic (d. 1906)
Deaths:
- 1947 – Karl Mannheim, Hungarian-English sociologist and academic (b. 1893)
- 1975 – Pierre Fresnay, French actor and screenwriter (b. 1897)
- 1800 – Jean Étienne Championnet, French general (b. 1762)
Holidays:
- Martyrs' Day (Panama)
- Start of Hōonkō (Nishi Honganji) January 9–16 (Jōdo Shinshū Buddhism)
- Day of Republika Srpska (Republika Srpska entity of Bosnia and Herzegovina, result of 2016 Republika Srpska National Day referendum) (note: not celebrated and disputed in wider Bosnia and Herzegovina, having been declared unconstitutional in 2015)
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