1866, Panic of 1866, Memphis massacre of 1866, Civil Rights Act of 1866, 1866 great fire of Portland, Maine, Sanitary Act 1866, Cretan revolt (1866–1869), 1866 Sisyphus, 1866 in the United States, 1866 State of the Union Address, Orissa famine of 1866, 1866 United States elections, 1866 Liverpool Town Council election, Finnish famine of 1866–1868, London Conference of 1866, 1866–67 Barnes F.C. season, New Orleans Massacre of 1866, 1866 New York state election, 1866 Atlantic hurricane season, 1866 in France, Liberal government, 1859–1866, 1866 Massachusetts legislature, 1866–67 United States House of Representatives elections, Girls' School Committee of 1866, 1866 Carroll Pioneers men's soccer team, Félix Baciocchi (1803–1866), 1866 in Canada, 1866 in sports, 1866–67 United States Senate elections, Battle of Custoza (1866), Colony of British Columbia (1866–1871), 1866 Pennsylvania gubernatorial election, 1866 Mount Herbert by-election, 1866 Eye by-election, Election to the Romanian throne, 1866, 1866 Oregon gubernatorial election, 1866 in the United Kingdom, 1866 New Brunswick general election, Naval operations on Lake Garda (1866), 1866 West Virginia gubernatorial election, 1866 Port Chalmers by-election

January 1866 Williams colonial by-election, John Dundas (1808–1866), Peace of Prague (1866), 1866 Ipswich colonial by-election, April 1866 Williams colonial by-election, Battle of Boquerón (1866), 1866 Belgian general election, 1866 Williams colonial by-election, 1866 East Suffolk by-election, Great Tea Race of 1866, 1866 New Orleans mayoral election, 1866 New Zealand general election, 1866 Texas gubernatorial election, 1866 Chilean presidential election, 1866 Costa Rican general election, 1866 Romanian prince referendum, February 1866 Brecon by-election, 1866 Mitchell colonial by-election, September 1866 Clermont colonial by-election, SS Deutschland (1866), Erik af Klint (1816–1866), 1866 Swiss referendum, 1866 Gallatin County race riot, November 1866 Clermont colonial by-election, 1866 West Moreton colonial by-election, Members of the Victorian Legislative Assembly, 1866–1867, Mekong expedition of 1866–1868, Martin ministry (1866–1868), 1866 National Union Convention, United Nations Security Council Resolution 1866, Bristol (1866 steamboat), Laurence Sulivan (1783–1866), Brisbane Football Club (1866–1887), 1866 Port Curtis colonial by-election, Providence (1866 steamboat), 1866 Colony of British Columbia general election, NGC 1866, Charles Lushington (1785–1866), James Bell (footballer, born 1866), USS Piscataqua (1866), Boundary Treaty of 1866 between Chile and Bolivia, Bank of Queensland (1863–1866), 1866 Constitution of Romania, 1866 in India, Members of the Tasmanian House of Assembly, 1866–1871, 1866–67 college soccer season, Members of the Victorian Legislative Council, 1864–1866, 1866 in Russia, Prince Sigismund of Prussia (1864–1866), Third Derby–Disraeli ministry

1866, Panic of 1866, Memphis massacre of 1866, Civil Rights Act of 1866, 1866 great fire of Portland, Maine, Sanitary Act 1866, Cretan revolt (1866–1869), 1866 Sisyphus, 1866 in the United States, 1866 State of the Union Address, Orissa famine of 1866, 1866 United States elections, 1866 Liverpool Town Council election, Finnish famine of 1866–1868, London Conference of 1866, 1866–67 Barnes F.C. season, New Orleans Massacre of 1866, 1866 New York state election, 1866 Atlantic hurricane season, 1866 in France, Liberal government, 1859–1866, 1866 Massachusetts legislature, 1866–67 United States House of Representatives elections, Girls' School Committee of 1866, 1866 Carroll Pioneers men's soccer team, Félix Baciocchi (1803–1866), 1866 in Canada, 1866 in sports, 1866–67 United States Senate elections, Battle of Custoza (1866), Colony of British Columbia (1866–1871), 1866 Pennsylvania gubernatorial election, 1866 Mount Herbert by-election, 1866 Eye by-election, Election to the Romanian throne, 1866, 1866 Oregon gubernatorial election, 1866 in the United Kingdom, 1866 New Brunswick general election, Naval operations on Lake Garda (1866), 1866 West Virginia gubernatorial election, 1866 Port Chalmers by-election, January 1866 Williams colonial by-election, John Dundas (1808–1866), Peace of Prague (1866), 1866 Ipswich colonial by-election, April 1866 Williams colonial by-election, Battle of Boquerón (1866), 1866 Belgian general election, 1866 Williams colonial by-election, 1866 East Suffolk by-election, Great Tea Race of 1866, 1866 New Orleans mayoral election, 1866 New Zealand general election, 1866 Texas gubernatorial election, 1866 Chilean presidential election, 1866 Costa Rican general election, 1866 Romanian prince referendum, February 1866 Brecon by-election, 1866 Mitchell colonial by-election, September 1866 Clermont colonial by-election, SS Deutschland (1866), Erik af Klint (1816–1866), 1866 Swiss referendum, 1866 Gallatin County race riot, November 1866 Clermont colonial by-election, 1866 West Moreton colonial by-election, Members of the Victorian Legislative Assembly, 1866–1867, Mekong expedition of 1866–1868, Martin ministry (1866–1868), 1866 National Union Convention, United Nations Security Council Resolution 1866, Bristol (1866 steamboat), Laurence Sulivan (1783–1866), Brisbane Football Club (1866–1887), 1866 Port Curtis colonial by-election, Providence (1866 steamboat), 1866 Colony of British Columbia general election, NGC 1866, Charles Lushington (1785–1866), James Bell (footballer, born 1866), USS Piscataqua (1866), Boundary Treaty of 1866 between Chile and Bolivia, Bank of Queensland (1863–1866), 1866 Constitution of Romania, 1866 in India, Members of the Tasmanian House of Assembly, 1866–1871, 1866–67 college soccer season, Members of the Victorian Legislative Council, 1864–1866, 1866 in Russia, Prince Sigismund of Prussia (1864–1866), Third Derby–Disraeli ministry, John Strode Barbour (1866–1952), 1866 Swiss federal election, William Black (1771–1866), Henry Arthur Herbert (1815–1866), Standards of Weights, Measures, and Coinage Act 1866, 1866 in Chile, Texas Transportation Company (1866–1896), 1866 in Wales, Charles Wyndham (1796–1866), 1866 in Sweden, 1866 Melbourne Cup, Parramatta (1866), Henry Hoare (1807–1866), James Allan (footballer, born 1866), 1866 in animation, Prisons Act 1866, 1866 Grand National, 1866 in Uruguay, Samuel Jones (footballer, born 1866), 1866 in China, 1866 in architecture, David Mitchell (footballer, born 1866), William Dickson (footballer, born 1866), 1866 in Brazil, 1866 in Australian literature, 1866 in Belgium, List of shipwrecks in 1866, 1866 in Ireland, 1866 in Paraguay, List of acts of the Parliament of the United Kingdom from 1866, Battle of Langensalza (1866), List of shipwrecks in June 1866, Battle of Burkersdorf (1866), 1866 Vermont gubernatorial election, History of St. Louis (1866–1904), List of shipwrecks in February 1866, List of shipwrecks in August 1866, 1866 AAC Championships, October 1866 Danish Folketing election, List of shipwrecks in September 1866, Zhenskii vestnik (1866), 1866 in Germany, 1866 in Iceland, List of shipwrecks in April 1866, Wenonah (1866), List of elections in 1866, 1866 Nebraska gubernatorial election, List of shipwrecks in May 1866, List of shipwrecks in July 1866, Plebiscite of Veneto of 1866, Henry Wellesley (1794–1866), List of shipwrecks in November 1866, List of shipwrecks in March 1866, Battle of Aschaffenburg (1866), List of shipwrecks in October 1866, Operations in Valtellina (1866), 1866 Swedish general election, 1866 in Peru, 1866 in Portugal, 1866 Helston by-election