About Americans United for Separation of Church and State Americans United for Separation of Church and State is a nonpartisan educational and advocacy organization dedicated to advancing the constitutional principle of church-state separation as the only way to ensure freedom of religion, including the right to believe or not believe, for all of us. Founded in 1947, Americans United is a diverse and dynamic organization composed of people from all walks of life: lawyers and lobbyists, students and activists, religious leaders and impassioned Americans. AU includes people of faith and people who don’t profess any particular faith. It is a community that includes and welcomes people of all genders, races, ethnicities, religions or beliefs, gender identities, sexual orientations, ages, classes and abilities. Americans United uses high-impact litigation, powerful lobbying and grassroots advocacy to ensure that:  Religion does not dictate public policy.  The government does not tell Americans what to believe or how to practice their faith.  Discrimination is not justified under the guise of religious beliefs. Through a strong, diverse national supporter network, both on the ground and online, AU defends the separation of church and state and protects religious freedom for all in communities across the country. Americans United is a 501(c)(3) organization and is headquartered in Washington, D.C. If you share our commitment to church-state separation, please join with us today. We welcome your support in this important cause.