Which landmark case did the Supreme Court announced a three-part test it would use to determine whether the government's actions in a particular case violated the Establishment Clause?

Engel v. Vitale
Lemon v. Kurtzman
Agostini v. Felton
West Virginia v. Barnette

1 answer

The landmark case in which the Supreme Court announced a three-part test to determine whether the government's actions violated the Establishment Clause is Lemon v. Kurtzman. This case established what is known as the "Lemon Test," which consists of three criteria to evaluate the constitutionality of government actions related to religion.