Lemon v. Kurtzman, 403 U.S. 602 (1971), was a case argued before the Supreme Court of the United States. The court ruled in an 8–0 decision that Pennsylvania's Nonpublic Elementary and Secondary Education Act from 1968 was unconstitutional and in an 8–1 decision that Rhode Island's 1969 Salary Supplement Act was unconstitutional, violating the Establishment Clause of the First Amendment. The act allowed the Superintendent of Public Schools to reimburse private schools for the salaries of teachers who taught in these private elementary schools from public textbooks and with public instructional materials. Lemon was a major precedent in federal and local courts until it was effectively overturned by Kennedy v. Bremerton School District in 2022.
Engel v. Vitale, 370 U.S. 421 (1962), was a landmark United States Supreme Court case in which the Court ruled that it is unconstitutional for state officials to compose an official school prayer and encourage its recitation in public schools, due to violation of the First Amendment. The ruling has been the subject of intense debate.
"Separation of church and state" is a metaphor paraphrased from Thomas Jefferson and used by others in discussions regarding the Establishment Clause and Free Exercise Clause of the First Amendment to the United States Constitution which reads: "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof..."
In United States law, the Establishment Clause of the First Amendment to the United States Constitution, together with that Amendment's Free Exercise Clause, form the constitutional right of freedom of religion. The relevant constitutional text is:
Congress shall make no law respecting an establishment of religion...
McCreary County v. American Civil Liberties Union of Kentucky, 545 U.S. 844 (2005), was a case argued before the Supreme Court of the United States on March 2, 2005. At issue was whether the Court should continue to inquire into the purpose behind a religious display and whether evaluation of the government's claim of secular purpose for the religious displays may take evolution into account under an Establishment Clause of the First Amendment analysis.
Van Orden v. Perry, 545 U.S. 677 (2005), is a United States Supreme Court case involving whether a display of the Ten Commandments on a monument given to the government at the Texas State Capitol in Austin violated the Establishment Clause of the First Amendment.
Zelman v. Simmons-Harris, 536 U.S. 639 (2002), was a 5–4 decision of the United States Supreme Court that upheld an Ohio program that used school vouchers. The Court decided that the program did not violate the Establishment Clause of the First Amendment, even if the vouchers could be used for private religious schools.
Marsh v. Chambers, 463 U.S. 783 (1983), was a landmark court case in which the Supreme Court of the United States held that government funding for chaplains was constitutional because of the "unique history" of the United States. Three days before the ratification of the First Amendment in 1791, containing the Establishment clause, the federal legislature authorized hiring a chaplain for opening sessions with prayer.
American Civil Liberties Union of New Jersey v. Schundler, 168 F.3d 92, is a United States federal case establishing standards for a government-sponsored holiday display to contain religious symbols. It was decided by the Court of Appeals for the Third Circuit on February 16, 1999.
County of Allegheny v. American Civil Liberties Union, 492 U.S. 573 (1989), was a United States Supreme Court case in which the Court considered the constitutionality of two recurring Christmas and Hanukkah holiday displays located on public property in downtown Pittsburgh. The first, a nativity scene (crèche), was placed on the grand staircase of the Allegheny County Courthouse. The second of the holiday display in question was an 18-foot (5.5 m) public Hanukkah menorah, which was placed just outside the City-County Building next to the city's 45-foot (14 m) decorated Christmas tree and a sign saluting liberty. The legality of the Christmas tree display was not considered in this case.
The endorsement test proposed by United States Supreme Court Justice Sandra Day O'Connor in the 1984 case of Lynch v. Donnelly asks whether a particular government action amounts to an endorsement of religion, thus violating the Establishment Clause of the First Amendment. According to the test, a government action is invalid if it creates a perception in the mind of a reasonable observer that the government is either endorsing or disapproving of religion.
In Stone v. Graham, 449 U.S. 39 (1980), the Supreme Court of the United States ruled that a Kentucky statute was unconstitutional and in violation of the Establishment Clause of the First Amendment, because it lacked a nonreligious, legislative purpose. The statute required the posting of a copy of the Ten Commandments on the wall of each public classroom in the state. The copies of the Ten Commandments were purchased with private funding, but the Court ruled that because they were being placed in public classrooms they were in violation of the First Amendment.
Lynch v. Donnelly, 465 U.S. 668 (1984), was a United States Supreme Court case challenging the legality of Christmas decorations on town property.
Texas Monthly v. Bullock, 489 U.S. 1 (1989), was a case brought before the US Supreme Court in November 1988. The case was to test the legality of a Texas statute that exempted religious publications from paying state sales tax.
Lamb's Chapel v. Center Moriches Union Free School District, 508 U.S. 384 (1993), was a decision by the Supreme Court of the United States concerning whether the Free Speech Clause of the First Amendment was offended by a school district that refused to allow a church access to school premises to show films dealing with family and child-rearing issues faced by parents. In a unanimous decision, the court concluded that it was.
Board of Trustees of Scarsdale v. McCreary, 471 U.S. 83 (1985), was a United States Supreme Court case in which an evenly split Court upheld per curiam a lower court's decision that the display of a privately sponsored nativity scene on public property does not violate the Establishment Clause of the First Amendment.
American Legion v. American Humanist Association, 588 U.S. ___ (2019), was a United States Supreme Court case dealing with the separation of church and state related to maintaining the Peace Cross, a World War I memorial shaped after a Latin cross, on government-owned land, though initially built in 1925 with private funds on private lands. The case was a consolidation of two petitions to the court, that of The American Legion who built the cross, and of the Maryland-National Capital Park and Planning Commission who own the land and maintain the memorial. Both petitions challenged the Fourth Circuit's ruling that, regardless of the secular purpose the cross was built for in honoring the deceased soldiers, the cross emboldened a religious symbol and had ordered it altered or razed. The Supreme Court reversed the Fourth Circuit's ruling in a 7–2 decision, determining that since the Cross had stood for decades without controversy, it did not violate the Establishment Clause and could remain standing.
Larkin v. Grendel's Den, Inc., 459 U.S. 116 (1982), was a United States Supreme Court case dealing with the enforcement of liquor laws by a non-government entity. Massachusetts had established a law that allowed any church or school located within 500 feet (150 m) of an establishment seeking a liquor license to object to that license. The Supreme Court, in an 8–1 decision, ruled that Massachusetts' law violated the Establishment Clause as it delegated powers normally reserved to the government to non-government entities, and would allow decisions to be made along religious lines, effectively advancing religious purposes.
Shurtleff v. City of Boston, 596 U.S. ___ (2022), was a United States Supreme Court case related to the First Amendment to the United States Constitution. The case concerned the City of Boston's program that allowed groups to have their flags flown outside Boston City Hall. In a unanimous 9–0 decision, the Court ruled that the city violated a Christian group's free speech rights when it denied their request to raise a Christian flag over City Hall.
Kennedy v. Bremerton School District, 597 U.S. ___ (2022), is a landmark decision by the United States Supreme Court in which the Court held, 6–3, that the government, while following the Establishment Clause, may not suppress an individual from engaging in personal religious observance, as doing so would violate the Free Speech and Free Exercise Clauses of the First Amendment.
