Civil War

Shiloh

Period: Apr 6, 1862 to Apr 7, 1862

23,746 casualties, Union victory,

Hardin County, Tennessee, confederates launched a surprise attack on Grant's army

Second Manassas

Period: Aug 28, 1862 to Aug 30, 1862

22,180 casualties ,Prince William County, Virginia, Confederate victory, larger scale and numbers than the First Battle of Bull Run

Antietam

Period: Sep 17, 1862 to Sep 17, 1862

22,717 casualties, Washington County, Maryland, inconclusive, the bloodiest day in United States history, Emancipation Proclamation issued five days later

Stones River

Period: Dec 31, 1862 to Feb 2, 1863

23,515 casualties, Union victory, near Murfreesboro, Tennessee, highest percentage of casualties on both sides

Chancellorsville

Period: Apr 30, 1863 to May 6, 1863

24,000 casualties, Confederate victory, known as Lee's "perfect battle", Spotsylvania County, Virginia

Vicksburg

Period: May 18, 1863 to Jun 4, 1863

19,233 casualties, Warren County, Mississippi, Union victory, final major military action in the Vicksburg Campaign

Gettysburg

Period: Jul 1, 1863 to Jul 3, 1863

51,000 casualties, Largest amount of casualties, Union win, Gettysburg, Pennsylvania.

Chickamauga

Period: Sep 18, 1863 to Sep 20, 1863

34,624 casualties, Confederate win, end of a Union offensive in southeastern Tennessee and northwestern Georgia, near Chickamauga Creek

The Wilderness

Period: May 5, 1864 to May 7, 1864

29,800 casualties, first battle of Lt. Gen. Ulysses S. Grant's campaign, Spotsylvania County and Orange County, Virginia, inconclusive

Spotsylvania

Period: May 8, 1864 to May 21, 1864

30,000 casualties, Spotsylvania Court House, second major battle in Lt. Gen. Ulysses S. Grant's campaign, inconclusive