1864 (MDCCCLXIV) was a leap year starting on Friday (dominical letter CB) of the Gregorian calendar and a leap year starting on Wednesday (dominical letter ED) of the Julian calendar, the 1864th year of the Common Era (CE) and Anno Domini (AD) designations, the 864th year of the 2nd millennium, the 64th year of the 19th century, and the fifth year of the 1860s decade. As of the start of 1864, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localised use until 1918.

Events

January–March

April–June

Clipper ship City of Adelaide in 1864
Battle of Heligoland in 1864 by Josef Carl Barthold Puettner

July–September

American Civil War in 1864

October–December

Date unknown

Births

January–March

April–June

July–September

October–December

Deaths

January–June

July–December