John Brown was an abolitionist extremist who wanted to violently overthrow the slavery system. During Bleeding Kansas, he and his sons led attacks on pro-slavery citizens. He believed that his actions were a will of God, and therefore pure. ... The objective was to take supplies and arm their slave rebellion.
Answer:
Under the ordinance, slavery was forever outlawed from the lands of the Northwest Territory, freedom of religion and other civil liberties were guaranteed, the resident Indians were promised decent treatment, and education was provided for.
It was a chain reaction. Long story short, the countries were pulled into the war because of agreements they had with their allies. This treaty is what caused the countries to enter WWI, to protect and defend their allied countries who were already in the war.