History, in generations
How many generations ago was the American Civil War?
The U.S. Civil War began in 1861 and ended in 1865. Because the question can refer to either the beginning or the end, this page states which point its generation estimate uses.
From April 12, 1861 to October 16, 2026
6.6generations
About 166 years, using an average of 25 years per generation.
This answer counts from the opening attack on Fort Sumter, South Carolina, on April 12, 1861, commonly used as the start of the Civil War.
Try this date in the calculatorStart and end dates of the Civil War
Confederate forces opened fire on Fort Sumter on April 12, 1861. The surrender of Robert E. Lee's Army of Northern Virginia at Appomattox Court House on April 9, 1865 is a major end-of-war milestone, though other Confederate forces surrendered later.
This page calculates from the 1861 start date. To compare from the end, use April 9, 1865, or select a different end-of-war date in the calculator.
How we count generations
Elapsed years are divided by 25. That average is intentionally simple; real generations vary by family, place, and historical circumstance.
Frequently asked questions
When did the Civil War begin?
The war began on April 12, 1861, when Confederate forces attacked Fort Sumter in South Carolina.
When did the Civil War end?
Lee surrendered at Appomattox Court House on April 9, 1865. Confederate surrenders continued afterward, so the end date can depend on which milestone is being referenced.