It was through Propaganda and Silencing of people lead to people denying the fact that the holocaust was happening, and only rumors about concentration camps where among ally troops until they finally liberated them.
The holocaust was the mass genocide of jewish people by the nazi party so the so called "superior" german race could rule over Europe. Nazis beliwved jews were the rats that were investing Europe.
Answer:
1. All 3 religions shared the same principle in that one god existed. Their same principles like peace and justice were shared among the 3 religions.
2. Judaism and Islam do not recognize the divinity of Jesus. Judaism reject the notion of God in human form. The three religions used different scriptures such as the Old and New Testament and the Quran.