Anti-Semitism is new. It originated in the 19th century. Jew-hatred, on the other hand, has existed since the beginning of Jewish time. As the world evolved, so did the reason (or excuse) for Jew-hatred. When the world (led by Europe) was religious Christian, the hatred was funneled into the differences between Christianity and Judaism. When Europe turned secular, a new form of Jew-hatred emerged, based on national and racial grounds and was later named anti-Semitism.
