Why was d-day an important step in the war?

Making sure about air prevalence permitted the Allies over complete aeronautical surveillance, giving them indispensable insight on German beach front safeguards. D-Day likewise relied upon Allied control of the Atlantic, which was at long last accomplished in 1943 through triumph in the Battle of the Atlantic.

Explanation:

it's where allied troops got to European soil, which lead to Stalins defeat

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.