History of antisemitism in the United States
Antisemitism in the United States has existed since the colonial era, evolving from early religious and state-based discrimination to systemic social and economic exclusion in the 19th and 20th centuries. While the American experience often differed from the endemic violence of European antisemitism, Jewish Americans faced significant periods of hostility, including official government actions during the American Civil War and widespread social discrimination.
Source: Wikipedia — History of antisemitism in the United States (CC BY-SA 4.0)