Answer:
Following Beauregard's bombardment in 1861, Confederate forces occupied Fort Sumter and used it to marshal a defense of Charleston Harbor. Once it was completed and better armed, Fort Sumter allowed the Confederates to create a valuable hole in the Union blockade of the Atlantic seaboard.
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The concept of "alternative attendance" was conceived to "<span>d. Restrict the power of the daimyos," since it was believed that this method would provide a much-needed "check" to their power. </span>