What was the relationship of the 1965 elementary and secondary education act to the supreme court's earlier rulings on school desegregation?

Efforts to desegregate schools in the 1960's were closely related to

Brown v. Board of Education of Topeka U. S. Supreme Court ruling in 1954 which held that segregated schools are inherently unequal and that laws requiring white and non-white students to go to different schools were illegal.