north- underground railroad (18 h 45 min, 16 janv. 1700 ans – 18 h 14 min, 30 janv. 1865 ans)

Description:

secret routes and safe houses used to free slaves and go to canada 100,000 slaves were free they escaped by the underground railroads and made it to canada

Underground Railroad. Image. Britannica School, Encyclopædia Britannica, 1 Nov. 2017. school.eb.com/levels/middle/assembly/view/145447. Accessed 20 Jan. 2018.