Prophet Muhammad's revelation that took place in 610 AD, was an incident mention in Islam, during which Muhammad, the Islamic prophet, was attended by the archangel Jibrīl or Gabriel, who explained to him the origins of what will become the Quran. This revelation led Muhammad to think that he was under the influence of demonic behaviour, which is taking him to kill himself. Over time, he came to know that he has been chosen as the last Prophet of Islam and throughout his life, he consigned the preservation of the word of God (Allah), conveyed by Gabriel.
The answer is racism. It is racism because they treated the Europeans from the north more better than Europeans from the south for no reason when they were essentially the same