why did rayford logan describe one of the periods as the "nadir of race relations"?

Logan describes the Jim Crow Era as the nadir of American race relations, a low flat rugged plateau.

Explanation: Logan's explanation of American race relations has been an important description of the Jim Crow Era.

john f. kennedy purpose was to make his argument a strong appeal to emotion in order to make an impact and connection to american citizens. he want to achieve peace by telling the citizens they shouldn't be afraid of other nations.

explanation:

ghana achieved independence peacefully, while algeria gained independence through an armed struggle.