The Anti-Defamation League (ADL), formerly known as the Anti-Defamation League of B'nai B'rith, is a New York-based international Jewish non-governmental organization and advocacy group that specializes in civil rights law and combats antisemitism and extremism. It was founded in late September 1913 by the Independent Order of B'nai B'rith, a Jewish service organization, in the wake of the content... Wikipedia