Our Pick
Posted on @rawstates
Battle of Antietam
September 17, 1862
Sharpsburg, Maryland
Public domain · Wikimedia Commons
September 17, 1862, remains the bloodiest single day in American military history, with roughly 23,000 casualties. The Union result enabled the preliminary Emancipation Proclamation.
That was 1 of the hidden places.
Location: historic site
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