This document discusses the history and meaning of antisemitism. It defines antisemitism as prejudice or discrimination against Jews and traces its roots to early Christianity, driven by theological differences and misunderstandings between Christians and Jews. The document outlines some notable historical instances of antisemitic persecution against Jews, such as pogroms in medieval Europe and the Holocaust in the 20th century. It also notes that while the term "antisemitic" refers to hostility toward Jews, it is technically a misnomer since Arabs are also Semites.