Important terms:

• Shabbos Goy - a non-Jew who is employed by Jews to perform certain types of work (melakha) that Jewish religious law (halakha) prohibits a Jew from doing on the Shabbat.
• Goy-im - a term used by Jewish people for a non-Jewish person.
• Blood Libel - an accusation that Jewish people used the blood of Christians in religious rituals, especially in the preparation of Passover bread, that was perpetrated throughout the Middle Ages and (sporadically) until the early 20th century.
• Antisemitism - hostility to or prejudice against Jewish people