Everson v. Board of Education was a landmark Supreme Court case decided in 1947 that addressed the issue of the separation of church and state. The Court ruled that the New Jersey law allowing public funds to be used for transporting students to religious schools did not violate the Establishment Clause of the First Amendment. This case marked a significant interpretation of how governmental policies could engage with religious institutions, influencing ideology and policy-making related to education and religion in the U.S.