Which of the following held "separate but equal" as constitutional?
a. dred scott v. sanford
b. plessy v. ferguson
c. the civil right act of 1866
d. the civil rights act of 1875

B. Plessy v. Ferguson
Not 100%, but hopefully that helps.

The answer is B. Plessy v. Ferguson. Hope this helps 

The re-election of the president abraham lincoln.

The statistics for the eastern war are grim. more than three-million men died in the fighting, more than nine-million men were wounded, and every major country which participated lost its form of government.