Whats the relationship between farming and the growth of towns

The more crops there are, that means that there's gonna be more resources. Which will mean that more people will be able to live in a town, because if there are less resources and less crops then more people will starve and die out way before they can reproduce. If they cant keep reproducing and be able to feed their children, then the town will become smaller and smaller until its completely vanished.

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.