Underground Railroad (mar 1, 1810 – jul 1, 1850)
Description:
... was a network of routes, paces, and people that helped enslaved people in the American South escape to the North.Formally enslaved people, abolitiononist and others supported that network in different roles. One prominet supporter was Harriet Tubman.
https://education.nationalgeographic.org/resource/underground-railroad/
Added to timeline:
Date:
mar 1, 1810
jul 1, 1850
~ 40 years