When the Prophet Mohammed peace be upon him was forty years old, he was tasked to invite people to Islam. The religion of Islam secretly spread among the people of Mecca for three years. When the revelation ordered the invitation of Islam to be declared openly, the Prophet has put Allah's commandment into practice. Although the Dawa invitation to Islam has been accepted among some people in the beginning, many Meccan did not accept the position of the Prophet, when he criticized their beliefs or their idols. So, they agreed on to block the spread of dawa to Islam. After a short while, the polytheists started to oppress the Prophet, and torture his followers. When the persecution of polytheists became unbearable; the Prophet, advised Muslims to migrate to the Habasha to protect themselves from what they have already found in Makkah. He, peace be upon him, knew very well that the Islamic Dawa must be strengthened and that Habasha ruled by a fair king who protect anyone comes to his kingdom asking for his protection. Muslims in need of protection followed the advice of the Prophet and emigrated to Habasha.