This equality and tolerance shown by Islam is because Islam believes that all human beings are of one origin. Human rights in Islam are based on two points: equality, and the fact that human beings share one common origin. Everyone is equal before God; their good deeds make the difference.
Many Jewish and Christian scholars flourished in the Islamic civilization such as Moses Ben Maymoun,a medical scholar who lived through the tolerance of Islam, Mansha Ben Ibrahim, a Jewish vizier [A high official in a Muslim government] in the time of the Fatimid Period, and Isaac Ben Hanin [910-911], a Christian doctor who enjoyed equality under Islamic rule.