Antisemitism takes several recognizable forms: false claims about Jews as a group, exclusion from public life, discriminatory rules, and attacks on people or Jewish institutions. These forms can reinforce one another. Naming the specific claim or act makes it possible to identify antisemitism accurately without treating every disagreement about a policy as hatred of Jews.
Conspiracy claims and collective blame
A recurring antisemitic pattern portrays Jews as secretly controlling governments, money, media, or world events. The International Holocaust Remembrance Alliance (IHRA) working definition identifies allegations of a world Jewish conspiracy and collective Jewish control as examples of antisemitic expression. It also identifies blaming Jews as a people for acts committed by one Jewish person, a group, or non-Jews. These claims replace evidence about individuals or institutions with inherited suspicion of an entire people.
Blood libel is a historically deadly example: the false allegation that Jews used the blood of Christian children for religious rites. In Norwich in 1144 and Trent in 1475, accusations led to persecution and executions; in Kishinev in 1903, antisemitic newspaper coverage helped fuel a pogrom in which nearly 50 Jews were killed. The United States Holocaust Memorial Museum’s account traces the falsehood across centuries and records how it incited violence.
Exclusion turned into rules
Discrimination can be imposed by law or institutional practice. Nazi Germany provides a dated example rather than a generalization across countries: in April 1933, laws restricted Jewish students and sharply curtailed Jewish professionals. In September 1935, the Nuremberg Laws stripped Jews of citizenship and prohibited marriages with people the regime classified as “German or related blood.” The government later seized Jewish businesses through a process called “Aryanization.” These measures show how a state can translate prejudice into limits on education, work, civil rights, and property. The Museum documents these laws and their enforcement.
On April 1, 1933, the Nazi Party also organized a nationwide boycott of Jewish businesses. Party members stood outside shops and professional offices to intimidate customers and owners. The action lasted one day, but it launched a broader campaign to drive Jews out of Germany’s economy. The Museum’s account of the boycott explains the event and its place in Nazi policy.
Harassment, vandalism, and physical attacks
Antisemitism can target individual Jews with slurs, threats, assault, or vandalism of homes, synagogues, schools, and cemeteries. A crime is antisemitic when a Jewish person or Jewish-associated property is selected because it is or is perceived to be Jewish. The IHRA definition notes that context matters when assessing expression about Israel: criticism comparable to that directed at other countries is not antisemitic by itself. Its examples include assigning Jews collective responsibility for Israel’s actions or applying antisemitic stereotypes to Israel as a Jewish collectivity.
Kristallnacht demonstrates how rhetoric, organized discrimination, and violence can converge. On November 9–10, 1938, Nazi officials coordinated attacks on synagogues, businesses, homes, and people; police were instructed not to intervene. More than 1,400 synagogues were burned and about 26,000 Jewish men were arrested. The Museum’s detailed account shows that this was organized state-sponsored violence, not an uncontrolled local dispute. For modern examples involving Israel-related speech, see the page on criticism of Israel and antisemitism.