Question

How did the battle of antietam change the course of the american civil war?

Answer 1

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Step-by-step explanation:

Answer 2

Antietam enabled the Union to repel the first Confederate invasion of the North. A tide of momentum swept Robert E. Lee's Army of Northern Virginia—fresh from a successful summer campaign and victory at the Second Battle of Bull Run—onto Union soil for the first time on September 3, 1862