Where did John Brown stir up controversy with his attack in Virginia?

John Brown stirred up controversy with his attack at Harpers Ferry, Virginia, in October 1859. He led a raid on the federal armory in an attempt to incite a slave uprising and abolish slavery. The attack was met with significant resistance, leading to Brown's capture and subsequent execution, which further polarized the nation and heightened tensions between the North and South over the issue of slavery.