___ were critical elements influencing important developments in the Civil War, including major battles.

The firing on ___ began the Civil War. (April 1861)

The first battle ___ of in Northern Virginia was the first major battle of the Civil War. (July 1861)

The siege at ___ in southern Mississippi divided the South and the North gained control of the Mississippi River. (May-July 1863)

The Battle of ___ in southern Pennsylvania was the turning point of the war in which the North repelled Lee’s invasion. (July 1863)

Lee’s surrender to Grant at ___ in 1865 ended the war. (April 1865)

The signing of ___ made “freeing the slaves” the new focus of the war.

After ___ Many free slaves joined the Union army. (January 1863)

___ sent ships to the Atlantic Ocean and Gulf of Mexico to prevent enemy troops and supplies getting out and European aid from getting in.

The Union blockade of Southern ports included the ports in ___.

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