| Slavery/Abolition |
|
Thousands of African-American citizens in Washington D.C. celebrate the anniversary of their emancipation |
| Lawmaking/Litigating |
|
The New York Legislature passes its first animal anti-cruelty law, to be enforced by the ASPCA |
| Education/Culture |
|
Carlotta De Berg, celebrated equestrienne circus performer, makes her American debut in New York City |
| Lawmaking/Litigating |
|
In Augusta, the Maine Legislature adjourns its first 1866 session after fifty-two busy days. |
| Battles/Soldiers |
|
Spanish naval units arrive off Callao, Peru and warn the port will be bombarded in four days time. |
| Crime/Disasters |
|
In the east London docks, the new London Fire Brigade deals with another large Dockland warehouse fire |
| Crime/Disasters |
|
In south London, England, a road bridge over a railway line collapses and kills six workers. |
| Crime/Disasters |
|
In southern England, a late night railroad crash kills three and injures many more. |
| Crime/Disasters |
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|
In Memphis, serious riots break out as whites kill, rape, and burn in African-American sections of the city |
| Crime/Disasters |
|
Nighttime arson attacks burn several African-American churches and church buildings in Petersburg, Virginia |
| Battles/Soldiers |
|
At the Battle of Estero Bellaco, Brazilian and Argentine forces beat off a Paraguayan attack. |
| Crime/Disasters |
|
In Hartford, Connecticut, the City Bindery building suddenly collapses |
| Battles/Soldiers |
|
Spanish naval units bombard the Peruvian port of Callao |
| Crime/Disasters |
|
An American clipper-ship burns in the Pacific leaving her crew in boats thousands of miles from land. |
| Campaigns/Elections |
|
In state elections, Rhode Island Republicans score huge victories and elect Ambrose Burnside governor. |
| Battles/Soldiers |
|
Outside Richmond, Virginia, the Glendale National Cemetery for Union dead is instituted |
| Personal |
|
British colonel implicated in the Jamaican massacres of October 1865 commits suicide |
| US/the World |
|
In New York City, enthusiastic crowds of Irish-Americans greet Fenian Leader James Stephens |
| Crime/Disasters |
|
Eight men die in a mining disaster in south-west England. |
| Science/Technology |
|
The Washington Observatory observes a new variable star flaring in the Coronae Borealis |
| Crime/Disasters |
|
In Nevada County, California, peace officers chase down a gang of stagecoach robbers, killing two |
| Education/Culture |
|
On the Epson Downs in England, the favorite wins the eighty-seventh running of the Derby. |
| Crime/Disasters |
|
Anton Probst, murderer of his employer's entire family, is sentenced to death in Philadelphia |
| Education/Culture |
|
New York City and New Jersey boat clubs hold a large regatta on the Hudson River |
| Education/Culture |
|
Newark, New Jersey celebrates the bicentennial of its founding with a large street parade. |
| Education/Culture |
|
Constable's famous painting "The Hay Wain" is sold at auction in London for a record £1,365. |
| Lawmaking/Litigating |
|
In West Virginia, a state constitutional amendment passes and disenfranchises many former Confederates |
| Battles/Soldiers |
|
At the Battle of Tuyutí, the Paraguayan army suffers massive losses attacking the Allied invaders. |
| Crime/Disasters |
|
Fire destroys much of a small town in southwestern England and hundreds are made homeless. |
| US/the World |
|
Crown Princess Victoria Kamāmalu, the appointed heir to the Hawaiian throne dies in Honolulu. |
