Final answer:
July 4, 1863, was the turning point in the war as the Union won a decisive victory at the Battle of Gettysburg, halting Confederate efforts to invade the North.
Step-by-step explanation:
July 4, 1863, was considered the turning point in the war because it marked the end of Confederate efforts to invade the North during the American Civil War. On this day, the Union army, led by General George Meade, successfully repelled Confederate General Robert E. Lee's army at the Battle of Gettysburg. This decisive Union victory boosted morale and marked a significant setback for the Confederacy.
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