https://www.thirteen.org/wnet/slavery/timeline/index.html
https://writingcenter.unc.edu/tips-and-tools/history/
https://www.theroot.com/how-many-slaves-landed-in-the-us-1790873989
https://www.slavevoyages.org/assessment/estimates
https://www.thirteen.org/wnet/supremecourt/antebellum/landmark_plessy.html
http://mwp.olemiss.edu//dir/wells-barnett_ida/
https://www.blackpast.org/african-american-history/washington-booker-t-1856-1915-2/
https://www.blackpast.org/african-american-history-timeline/
https://www.ferris.edu/jimcrow/
https://www.npr.org/templates/story/story.php?storyId=129827444
https://glc.yale.edu/niagaras-declaration-principles-1905
https://rrchnm.org/episodes/the-birth-of-a-nation-and-black-protest/
https://naacp.org/find-resources/history-explained/civil-rights-leaders/charles-hamilton-houston