1.India has the largest slave population in the modern world with over 14 million slaves. 2.Ancient Romans celebrated "Saturnalia", a festival in which slaves and their masters would switch places. 3. Benjamin Franklin attempted to abolish slavery already in 1790. 4.America's first slave owner was a black man.5.A Slave in America in 1850 would costover US$12,000in 2013 dollars. i hope this helps!!!!!