Why is John Brown signifigant to the anti-slavery movement?

Encouraged slaves to rebel against their masters.

http://www.youtube.com/watch?v=wh5kHly3BwQ

Started the U.S. on the road to civil war.

Brown was fully aware of his actions.

Brown was not insane.

Brown would not compromise those who helped him.

http://www.u-s-history.com/pages/h90.html

Letter to his family; "Abhor slavery"

Defeat of the rebellion granted Robert E. Lee prestige as a military leader.

http://www.laughtergenealogy.com/bin/histprof/misc/harpersferry.html