26 February – the Birkenhead founders off the coast of South Africa. The soldiers stand to attention while women and children are placed in the lifeboats.
2 October – William O'Brien, nationalist, journalist, agrarian agitator, social revolutionary, politician, party leader, newspaper publisher and author (died 1928).
Deaths
25 February – Thomas Moore, poet, singer, songwriter and entertainer (born 1779).
^Pelle, Kimberley D. "Appendix D: Fairs Not Included". In Findling, John E. (ed.). Encyclopedia of World's Fairs and Expositions. McFarland & Company, Inc. pp. 414–422. ISBN9780786434169.
^Kinealy, Christine (1994). This Great Calamity: The Irish Famine 1845–1852. Dublin: Gill & Macmillan. pp. xvi–ii. ISBN0-7171-4011-3.