Battle of Antietam / Sharpsburg Timeline (September 17th, 1862)

UNION STRATEGIC VICTORY

COMMAND(S):
George B. McClellan

ARMY FORCE(S):
Army of the Potomac

STRENGTH:
87,164 men

CASUALTIES*:
12,410 men (14.2%)

* Includes killed, wounded, and missing.

COMMAND(S):
Robert E. Lee

ARMY FORCE(S):
Army of Northern Virginia

STRENGTH:
38,000 men

CASUALTIES*:
10,316 men (27.1%)

* Includes killed, wounded, and missing.

Force Strength

Casualties Comparison

Day-by-Day Timeline of Events

September 4, 1862

Near Leesburg, Virginia, the Army of Northern Virginia begins its crossing along the Potomac River.

September 7, 1862

General Robert Lee has amassed his army at Frederick, Maryland.

Icon signifying notable person or persons

September 7, 1862

General George McClellan begins a slow advance away from Washington, D.C. to meet the Confederate threat emerging from Virginia.

September 9, 1862

Special Orders 191 is given by General Lee, ordering a special column formation to be taken by his troops to increase the chances of overtaking Harpers Ferry and the Union forces garrisoned there.

September 11, 1862

General Lee assigns General Longstreet to guard the approaches from the north while General Hill is given the task of the defending the approaches from the south of Harpers Ferry.

September 11, 1862

General Jackson engages Union forces at Martinsburg and drives them back towards Harpers Ferry.

September 12, 1862

The Battle of Harpers Ferry begins. Generals Miles and White lead a Union force of 14,000 against some 26,000 Confederate attackers under the command of generals Stonewall Jackson and A.P. Hill.

September 13, 1862

The Army of the Potomac arrives at Frederick, Maryland. Once there, soldiers recover a copy of General Lee's plans.

September 14, 1862

The Battle of South Mountain takes place. It is a Union victory for General McClellan, General Burnside and General Franklin over General Lee and General Hill.

September 14, 1862

The Battle of Crampton's Gap (Burkittsville) is a Union victory for General Franklin over General Cobb. Forces number 12,800 to 2,100, respectively.

September 15, 1862

General Jackson's forces open up with artillery strikes against Union forces at Harpers Ferry.

September 15, 1862

The Battle of Harpers Ferry ends as a Confederate victory.

September 15, 1862

A Confederate division under the command of General John Walker takes Loudoun Heights.

September 15, 1862

General Dixon Miles quickly surrenders the Union garrison at Harpers Ferry.

September 15, 1862

General Lee arranges his army behind Antietam Creek near Sharpsburg, Maryland.

September 16, 1862

Having suffered a mortal wound at the Battle of Harpers Ferry, General Dixon Miles dies.

September 17, 1862

The Battle of Antietam is had near Sharpsburg, Maryland and results of the one-day engagement are tactically inconclusive. 87,164 Union troops (led by McClellan) face off against 38,000 Confederates (led by Lee). Casualties are 12,410 and 10,316 respectively.

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Battle of Antietam / Sharpsburg Timeline (September 17th, 1862)

The Battle of Antietam (Sharpsburg) saw a much larger Union force claim the strategic victory - though the battle as a whole was deemed tactically inconclusive.