From 1939 to 1945, Hitler and the Nazis tried to get rid of all Jewish people. They forced Jews to live in concentration camps and killed about 6 million people. This event in history is called the

Holocaust.

Explanation:

The Holocaust was the period between 1939 to 1945 when the Nazis under the regime of Adolf Hitler began persecuting the Jewish people. This racial discrimination was one of the greatest genocide in the history of the world, even to this day.

The persecution of a particular race, in this case, the Jews, led to mass killings and murders. Hitler ordered his men, along with the secret police agency the Gestapo to arrest and 'confine' any Jew they find. This confinement was done in 'concentration camps' where the healthy ones were put to work while those unfortunate to be old, young, or sick were taken to the gas chambers and put to death.

Thus, the answer is the Holocaust.

i think it is the third one.