A peculiar feature of the celebration of Christmas in the United States is that its observance and its symbols became and continue to be the subjects of First Amendment litigation regarding the Establishment Clause. It has been frequently claimed, and courts have sometimes agreed, that the public display of Christmas decorations and symbols, and the official recognition of Christmas as a legal holiday, are unconstitutional ‘establishments’ of religion. After the Supreme Court’s created the Lemon test to consider Establishment Clause claims, courts’ rulings under the test have been inconsistent and unpredictable, and the subject of widespread academic and popular criticism. There are reasons to believe, however, that the current Supreme Court is moving away from a strict form of ‘Church–State separation’ and towards a greater appreciation for tradition, history, and practice.