Because of ignorance, intolerance and bigotry.
It wasn't a "king", it was Hitler who ordered the persecution of the Jewish.
The Jewish people
The Holocaust was about race, not religion.
L. Lopez Masi Mott
it was one of the principles of Nazism.
During the Jewish persecution Hitler was in power. and he was incharge of every thing that was happing to the Jews.
World War II persecution of Serbs happened in 1941.
It was during the Passover
He thought they were related to rats and his mother died of a disease and blamed it on the Nurse because she was Jewish.
It is Hanukkah, which commemorates the victory of the Jews against religious persecution from the Greeks.
There was no persecution of Jews in the US
In Europe, Africa and in Asia.