The American Civil Liberties Union (ACLU) was founded in 1920 by Crystal Eastman, Roger Baldwin, and a small group of activists committed to ensuring the freedoms promised in the U.S. Constitution and its amendments. The ACLU is a nonprofit organization, with its leadership elected from its membership.Headquartered in New York, with numerous local affiliates across the United States, the ACLU addresses issues that involve aspects of civil liberties and constitutional rights. These topics include immigrants' rights, racial justice, freedom of speech, women's rights, voting rights, LGBT rights, and more. They conduct litigation, communication, and advocacy to defend and preserve individual rights and liberties.**One interesting fact**: Over the past century, the ACLU has been involved in numerous landmark legal cases that have shaped and redefined the boundaries of civil liberties in the United States. From the Scopes Monkey Trial in the 1920s to the fight for marriage equality in recent years, the ACLU's legal action has often been at the center of significant moments in American history.