In which year did the Marines put down an attempted slave revolt led by John Brown?

The correct year in which the Marines put down an attempted slave revolt led by John Brown is 1859. This significant event occurred when John Brown and his followers attempted to seize the armory at Harpers Ferry, Virginia, in an effort to inspire a larger slave uprising. The U.S. Marines, under the command of Colonel Robert E. Lee, were dispatched to suppress the revolt. The successful intervention by the Marines resulted in the capture of Brown and his men, ultimately leading to Brown's trial and execution. This incident became a pivotal moment in American history, highlighting the escalating tensions leading up to the Civil War. Understanding this event is crucial as it illustrates the role of military forces in responding to civil insurrections during that era.