How did William H. Seward aid US expansion? Seward sent missionaries to Hawaii to spread US culture.
Seward concluded the first US treaty with Japan.
Seward negotiated the end of the Russo-Japanese War.
Seward signed a treaty with Russia to buy Alaska

Seward signed a treaty with Russia to buy Alaska

Explanation:

d because I took the unit review on edge

b.   jim crow laws were enacted in northern states.

thurgood marshall

explanation: in 1954, thurgood marshall and a team of naacp attorneys won brown v. board of education of topeka, kansas. in this landmark decision, the supreme court held that segregation in public education violated the equal protection clause of the fourteenth amendment.