1866
Memphis massacre of 1866
Panic of 1866
Civil Rights Act of 1866
1866 in the United States
1866 State of the Union Address
1866 great fire of Portland, Maine
Cretan revolt (1866–1869)
1866 United States elections
Sanitary Act 1866
1866 Sisyphus
Finnish famine of 1866–1868
1866 Liverpool Town Council election
Orissa famine of 1866
1866 New York state election
Liberal government, 1859–1866
London Conference of 1866
1866–67 United States House of Representatives elections
1866 Atlantic hurricane season
1866 in France
New Orleans Massacre of 1866
1866–67 Barnes F.C. season
1866 Massachusetts legislature
1866–67 United States Senate elections
Girls' School Committee of 1866
1866 in Canada
1866 Carroll Pioneers men's soccer team
Félix Baciocchi (1803–1866)
1866 in sports
Battle of Custoza (1866)
1866 Oregon gubernatorial election
1866 Pennsylvania gubernatorial election
1866 Eye by-election
1866 Mount Herbert by-election
1866 in the United Kingdom
1866 West Virginia gubernatorial election
Election to the Romanian throne, 1866
1866 New Brunswick general election
Naval operations on Lake Garda (1866)
Peace of Prague (1866)
1866 Belgian general election
1866 Williams colonial by-election
January 1866 Williams colonial by-election
1866 East Suffolk by-election
Colony of British Columbia (1866–1871)
1866 Port Chalmers by-election
Battle of Boquerón (1866)
John Dundas (1808–1866)
1866 New Orleans mayoral election
1866 Texas gubernatorial election
1866 Ipswich colonial by-election
April 1866 Williams colonial by-election
1866 New Zealand general election
Great Tea Race of 1866
1866 Chilean presidential election
1866 Romanian prince referendum
February 1866 Brecon by-election
1866 Costa Rican general election
Erik af Klint (1816–1866)
September 1866 Clermont colonial by-election
Martin ministry (1866–1868)
1866 Gallatin County race riot
Mekong expedition of 1866–1868
November 1866 Clermont colonial by-election
1866 Mitchell colonial by-election
SS Deutschland (1866)
1866 Swiss referendum
Members of the Victorian Legislative Assembly, 1866–1867
1866 West Moreton colonial by-election
1866 National Union Convention
Laurence Sulivan (1783–1866)
1866 Port Curtis colonial by-election
Brisbane Football Club (1866–1887)
United Nations Security Council Resolution 1866
Charles Lushington (1785–1866)
Providence (1866 steamboat)
1866 Colony of British Columbia general election
Bristol (1866 steamboat)
Boundary Treaty of 1866 between Chile and Bolivia
Members of the Tasmanian House of Assembly, 1866–1871
Bank of Queensland (1863–1866)
1866–67 college soccer season
James Bell (footballer, born 1866)
USS Piscataqua (1866)
1866 in India
1866 Constitution of Romania
Prince Sigismund of Prussia (1864–1866)
Members of the Victorian Legislative Council, 1864–1866
Henry Arthur Herbert (1815–1866)
1866 Swiss federal election
Third Derby–Disraeli ministry
1866 in Russia
NGC 1866
Texas Transportation Company (1866–1896)
John Strode Barbour (1866–1952)
1866 in Chile
Charles Wyndham (1796–1866)
William Black (1771–1866)
1866 in Sweden
1866 in Wales
James Allan (footballer, born 1866)
1866 Melbourne Cup
Parramatta (1866)
Henry Hoare (1807–1866)
1866 Grand National
1866 in Uruguay
David Mitchell (footballer, born 1866)
1866 in Brazil
1866 in China
1866 in Belgium
William Dickson (footballer, born 1866)
1866 in animation
List of shipwrecks in 1866
Samuel Jones (footballer, born 1866)
1866 in Ireland
Battle of Langensalza (1866)
1866 in Paraguay
History of St. Louis (1866–1904)
1866 in architecture
1866 in Australian literature
October 1866 Danish Folketing election
1866 Nebraska gubernatorial election
1866 in Iceland
1866 Vermont gubernatorial election
List of elections in 1866
List of shipwrecks in June 1866
1866 in Germany
List of shipwrecks in August 1866
List of shipwrecks in April 1866
List of shipwrecks in September 1866
List of shipwrecks in February 1866
1866 AAC Championships
SS Tynwald (1866)
Operations in Valtellina (1866)
Wenonah (1866)
List of shipwrecks in May 1866
1866 in archaeology
List of shipwrecks in July 1866
French expedition to Korea
List of shipwrecks in March 1866
1866 in Peru
1866 in Denmark
List of shipwrecks in October 1866
Zhenskii vestnik (1866)
1866 in science
1866 Swedish general election
List of shipwrecks in November 1866
1866 in Scotland
1866 in Portugal
Battle of Lissa (1866)
1866 Helston by-election
1866 Open Championship
Members of the Tasmanian House of Assembly, 1862–1866
Henry Wellesley (1794–1866)
Battle of Aschaffenburg (1866)
1866 in Argentina
1866 in art
1866 in Norway
Plebiscite of Veneto of 1866
Billy Hamilton (baseball, born 1866)
Battle of Burkersdorf (1866)
Invasion of Trentino (1866)
June 1866 Danish Folketing election
List of shipwrecks in December 1866
PS Mayflower (1866)
List of shipwrecks in January 1866
1866 Michigan gubernatorial election
1866 Kansas gubernatorial election
A Young Lady in 1866
1866 in birding and ornithology
List of ship launches in 1866
1866 Nevada gubernatorial election
John McCartney (footballer, born 1866)
1866 Maine gubernatorial election
1866 in Australia
1866 Massachusetts gubernatorial election
1866 in literature
Standards of Weights, Measures, and Coinage Act 1866
1866 Georgia State Freedmen's Conventions
Slave Kidnapping Act of 1866
Treaty of Vienna (1866)
1866 Connecticut gubernatorial election
Miniature altarpiece (V&A 225-1866)
Geneva Congress (1866)
Battle of Fort Erie (1866)
Metropolitan Commons Act 1866
Springfield Model 1866
Metric Act of 1866
General Industrial Exposition of Stockholm (1866)
1866 Aberdeenshire by-election
North German Confederation Treaty
1866 Minnesota State Auditor election
1866 Leominster by-election
The Galaxy (magazine)
1866 English cricket season
1866 New Hampshire gubernatorial election
1866 in paleontology
1866 Rhode Island gubernatorial election
1866 Tumut colonial by-election
Colony of British Columbia (1858–1866)