How did Harper's ferry contribute to the outbreak of civil war?

Harper's Ferry was the site of John Brown's raid in October 1859, where he attempted to seize a federal armory to arm enslaved people for a revolt against slavery. This bold act heightened tensions between the North and South, as many in the South viewed it as a direct threat to their way of life and an example of Northern aggression. The raid galvanized abolitionist sentiment in the North while deepening Southern fears of slave insurrections, contributing significantly to the sectional divide that ultimately led to the Civil War. Brown's execution also turned him into a martyr for the abolitionist cause, further inflaming hostilities between the regions.