1861 (MDCCCLXI) was a common year starting on Tuesday (dominical letter F) of the Gregorian calendar and a common year starting on Sunday (dominical letter A) of the Julian calendar, the 1861st year of the Common Era (CE) and Anno Domini (AD) designations, the 861st year of the 2nd millennium, the 61st year of the 19th century, and the second year of the 1860s decade. As of the start of 1861, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localised use until 1918.

Events

January–March

April–June

July–September

October–December

Date unknown

Births

January–June

July–December

Date unknown

Deaths

January–June

July–December