refers to the Supreme Court of the United States between 1953 and 1969, when Earl Warren served as Chief Justice. Warren led a liberal majority that used judicial power in dramatic fashion, to the consternation of conservative opponents. The Warren Court expanded civil rights, civil liberties, judicial power, and the federal power in dramatic ways.
The court was both applauded and criticized for bringing an end to racial segregation in the United States, incorporating the Bill of Rights (i.e. applying it to states), and ending officially sanctioned voluntary prayer in public schools. The period is recognized as a high point in judicial power that has receded ever since, but with a substantial continuing impact.