Based on the clue 'about 1 in 400 african americans has this heredita...', what is the answer?

Based on the clue 'abolitionist levi coffins house in fountain city i...', what is the answer? What is referred to by 'abolitionist railroad'? What is referred to by 'abolitionist william garrison'? What is associated with: about 1 hydrogen atom in 6500 is this isotope? What is associated with: about 1 male in 10000 is born with this bleeding disease where blood lacks clotting factor vii… Based on the clue 'about 1 of every 4 boxes of girl scout cookies sol...', what is the answer? Based on the clue 'about 1 of the population of greece is ethnically ...', what is the answer? Based on the clue 'about 1 out of every 10 japanese people lives in t...', what is the answer?