Select the two reasons columbus's crew threatened to mutiny. there are two answers.
a] they were afraid of falling off the edge of the world.
b] they were afraid they could not sail home against the winds.
c] they had never sailed so long out of sight of land.
d] they did not like the food.

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.