Ban slavery in land obtained from mexico
What would become the US States of California, Arizona, Nevada, Utah and New Mexico plus other minor concessions.
by printing and distributing antislavery pamphlets
When South Carolina forced the surrender of Fort Sumter.
(novanet) most crops were tended with slave labor
it required private citizens to assist in the search for runaway slaves
He would not interfere with slavery in the states where it already existed.
Susan B. Anthony
The people responsible for causing it were the mobs and government in Illinois and Missouri. The person responsible for leading it was Brigham Young. Although the colony was called "Great Salt Lake City", not "New Zion", and it was not on the shore of the Great Salt Lake but about 20 miles south east of the southernmost tip of the lake. Today it is known as Salt Lake City.
Crittendens compromise
If I am correct, and I believe I am, the Compromise of 1850 ended the practice of slave auctions inside the borders of Washington DC.
William Lloyd Garrison
He killed a group of proslavery settlers near Pottawatomie Creek