What happened before, during, and after the Holocaust in Europe during World War 2?

hi in europe people turned a blind eye to the facet that many jews and their own people who where fighting against the natzis where mercilisly tortured

Explanation: the little kids where thrown into fire and burnt alive or gassed to death the elderly wherer beaten and gassed and all of their possetions where taken b y the natzis  and they where starved and beaten before the holocoust people new who hitler was but they thought that there was no way anyone would vote him in

after wwll most jews had lost their whole ffamily and made their way to isreal hoping to rebuild their nation

please tell me if you need any more help :)

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which time period is this? or is this story fictional, i'm going to need more info to answer this question