This Day in History – September 17, 1862

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American Civil War,

Antietam,

Battle of Antietam,

bloodiest day in US military history,

civil war,

Civil War history,

Confederate army,

General George B. McClellan,

General Robert E. Lee,

George B. McClellan,

Maryland,

Maryland history,

Military History,

Robert E. Lee,

September 17,

September 17 1862,

Sharpsburg,

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This Day in History Antietam,

This Day in History September 17,

This Day in History September 17 1862,

Union Army,

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