How did slavery lead to the Republican Party?

Founded: March 20, 1854; 167 yearsago

The Republican Party emerged in 1854 to combat the Kansas–Nebraska Act and the expansion of slavery into American territories. ... The party opposed the expansion of slavery before 1861 and led the fight to destroy the Confederate States of America (1861–1865).

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.