The First Amendment of the U.S. Constitution
Explanation
The practice of secularism in the United States is fundamentally based on the doctrine of the separation of church and state. This ensures that the state does not intervene in the affairs of religion, and religion does not interfere in the affairs of the state.
Analysis of Options:
- The Declaration of Independence is incorrect: The Declaration of Independence (1776) mentions "Nature's God" and a "Creator" regarding inalienable rights, but it does not establish the legal framework for the separation of religion and the state.
- The First Amendment of the U.S. Constitution is correct: The First Amendment to the U.S. Constitution (ratified in 1791) explicitly states, "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof." This is known as the Establishment Clause. It prohibits the legislature from making laws that establish an official religion or give preference to one religion over another.
- The Civil Rights Act is incorrect: The Civil Rights Act (1964) is a landmark civil rights and labor law that outlaws discrimination based on race, color, religion, sex, or national origin. While it protects against religious discrimination, it is not the constitutional source of the state's secular character.
- The Federal Secularism Statute is incorrect: There is no such statute known as the "Federal Secularism Statute" in the United States legal system.
Key Takeaway: The First Amendment of the U.S. Constitution creates a strict "wall of separation" between the state and religion, preventing the establishment of any official religion.