Timeline: Cold Harbor-Union-Military Unit | Timetoast

Aug 20, 1862

20th Maine Regiment is formed
Period: Aug 20, 1862 to Jul 16, 1865

Regiments Timespan
Sep 17, 1862

Battle of Antietam

Held in reserve
Dec 18, 1862

Battle of Fredericksburg

In the left grand division
Apr 30, 1863

Battle of Chancellorsville
Period: May 1, 1863 to Jul 1, 1863

The regiment was held in reserve after they had taken a tainted Small Pox Vaccine
Jul 2, 1863

Battle of Gettysburg

The Regiment was stationed on Little Round Top on the extreme left of the Union line and charged the Confederates with fixed bayonets. They stopped the Union troops from being flanked.
Union win
Nov 27, 1863

Second battle of Rappahannock Station
Period: Nov 27, 1863 to Dec 2, 1863

Battle of Mine Run
May 5, 1864

Battle of the Wilderness

Union win
May 8, 1864

Battle of Spotsylvania Court House

Stalemate
May 23, 1864

Battle of North Anna

Stalemate
May 28, 1864

Battle of Toropotomoy Creek

stalemate
Period: May 31, 1864 to Jun 12, 1864

Battle of Cold Harbor

Final Major Confederate Win
Apr 1, 1865

Battle of Five Forks

Union win
Apr 9, 1865

Battle of Appomattox Court house

General Lee surrenders
Jul 16, 1865

The 20th Maine Regiment is disbanded