The **Anti-Defamation League (ADL)** is a prominent international non-governmental organization founded in 1913 in Chicago to combat antisemitism, bigotry, and discrimination broadly. It originated after the wrongful conviction and lynching of Leo Frank, a Jewish factory manager, which highlighted prevalent antisemitism and inspired Sigmund Livingston, a Chicago lawyer, to establish the ADL under the auspices of the B’nai B’rith organization[1][2][3]. The ADL’s mission is twofold: **to stop the defamation of the Jewish people and to secure justice and fair treatment for all** marginalized groups, reflecting its commitment beyond Jewish advocacy to broader civil rights[2][4]. Initially, the ADL focused on countering antisemitic stereotypes and defamation in media, theater, and print. A notable early achievement included efforts led by Adolph Ochs, publisher of The New York Times, who pressured newspapers to avoid antisemitic portrayals[1]. Over time, the ADL expanded its scope to monitor hate crimes, extremism, and antisemitism globally, assist law enforcement in prosecuting hate-motivated crimes, provide antibias and diversity training, and develop Holocaust education curricula[1][2]. The organization is headquartered in New York City, with about 30 regional offices across the United States and an office in Israel, underscoring its international reach and strong support for Israel[1][2]. Since becoming independent from B’nai B’rith in 2009, the ADL has increased its visibility and influence in advocacy, particularly in hate crimes legislation and policy reform, including expanding protections to racial, ethnic, and LGBTQ+ communities[2][5]. Notably, the ADL has been influential in shaping public discourse on hate speech and extremism, though it has also faced criticism for its political stances, particularly regarding its role in controversies involving racial and Middle Eastern issues[5][6]. Its archives and