They promoted learning outside the control of the government and Catholic Church.
The Cruscades. Without them, we wouldn't have slaughter of other religions.
Douglass portrays the slave traders and agents for slave traders as men auctioning for cattle instead of human beings. The slave traders and agents for slave traders at no point stop to think what they are doing is wrong, instead, it is business as usual and they are eager to acquire misbehaved slaves at steep discounts, much the same as farmers will bid pennies on the dollar for underweight farm animals.