Which organization defended the first amendment in the Scopes Trial?

The American Civil Liberties Union (ACLU) was instrumental in defending the First Amendment during the Scopes Trial, which took place in 1925. This trial, often referred to as the "Monkey Trial," revolved around the teaching of evolution in public schools and became a significant legal battle over academic freedom and the separation of church and state.

The ACLU was established specifically to protect civil liberties, including the rights guaranteed by the First Amendment. During the Scopes Trial, the organization provided legal support for John T. Scopes, a teacher accused of violating Tennessee's Butler Act, which prohibited the teaching of evolution. The ACLU's involvement highlighted its commitment to defending individual rights and freedoms against legislative restrictions.

Other organizations mentioned, such as the National Education Association and the American Association of University Professors, primarily focus on the interests and welfare of educators and academia but did not play a significant role in this particular trial. The Society for the Prevention of Cruelty to Children similarly does not relate to the issues at stake in the Scopes Trial. Therefore, the ACLU is recognized as the key organization advocating for First Amendment rights in this pivotal case in American legal history.