Did Scott have a good reason to believe that he would win his case? What political events changed this?

The argument Scott used was that because he had lived in a territory where slavery was illegal, he could never again be an enslaved person. He did have reason to believe he would win because this was a doctrine that was recognized in common law for centuries in Europe.

answer; /// i believe that the correct answer is (d)the huang he river valley;

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.