The Holocaust was a terrible time in our history.
Sadly, Multiple ethnic and social groups were sent to concentration camps, which put them through agonizing labor which, most of the time, ultimately led the prisoners to their death.
The group that was targeted most were people that were Jewish.
However, some of the many groups included the disabled, gypsies, and People who were against Hitler.
In the concentration camps, These prisoners were often killed if they didn't cooperate, or died from hunger, disease, and exhaustion.