Final answer:
Ulysses S. Grant played a role in ending Reconstruction by removing troops from Florida.
Step-by-step explanation:
Ulysses S. Grant did play a role in the end of Reconstruction, primarily by withdrawing federal troops from Florida and other Southern states. As president from 1869 to 1877, Grant faced political and economic challenges, and there was growing pressure to withdraw troops and ease Southern resentment.
The Compromise of the year 1877 effectively marked the end of Reconstruction, with Grant's administration agreeing to remove federal troops from the South in exchange for the resolution of the disputed 1876 presidential election. This withdrawal left African Americans vulnerable to the rise of discriminatory Jim Crow laws and the erosion of civil rights in the South.