On many occasions. See the attached Related Links.
they sent them off to concentration camps and killed them
Christians mostly killed Muslims and Jews during the Crusades. The whole thing was wrong- it was a slaughter.
The First Crusade was in 1096. In it, thousands of Jews were killed by the Christian crusaders.
No, Christians do not reject Jews. However, Jews reject Christians.
It didn't seem to make any difference to Hitler what type of Jews were killed during the Holocaust,
The Conversos in Spain were the people who converted into Christians when they were originally Jews in the Renaissance and they were killed in the Inquisition because Ferdinand and Isabella wanted to gain support from the original Christians
It is not clear that the Romans persecuted Jews more than Christians. Under some emperors, Christians were heavily persecuted, under others, Jews. During the great Jewish revolts that started in the years 68 and 132, Roman persecution of the Jews was intense. The emperor Hadrian, who put down the second revolt, probably killed half a million Jews in the process. Nero, on the other hand, seems to have really disliked Christians.
Jews like Paul persecuted the christians.
There have been Jews who have been burned by Christians for being heretics, so yes. However, Jews were far more often killed by sword, by gun, by gallows, or by poison gas.
Christians believe Jesus is the messiah, Jews don't.
Christians believe that the Messiah Has Come. Jews believe that He Has not.
Jews are not Christians. Christians believe that Jesus of Nazareth was the Messiah. Jews (and remember- Jesus was a Jew himself) believe that the Messiah has not yet come.