The result of the attack on Fort Wagner by the 54th Massachusetts Regiment showed that African Americans

The 54th Massachusetts, an African American regiment, fought bravely in its assault on Fort Wagner in 1863, even though the attack failed and many soldiers were killed or wounded. Their courage helped challenge racist doubts about whether African Americans would fight effectively for the Union. Thus, the attack showed that African Americans had the courage to fight.

AI-written and checked against the verified answer.