1948—In McCollum v. Board of Education, the Supreme Court applies the “wall of separation” myth that it adopted the previous year (see This Day entry for Feb. 10, 1947) and strikes down a released-time program in which religious teachers, employed by their own religious groups, could provide religious instruction on school grounds at designated times to those students whose parents consented. As law professor Philip Hamburger explains in Separation of Church and State, the McCollum case made clear that the Supreme Court’s misconstruction of the Establishment Clause “would go far beyond the [constitutionally unfounded] Protestant version of separation of church and state” and impose a secular version.