Because it's a disease
After the death of Muhammad, Islam spread all the way to the northern Arabian Peninsula.
Prophet Muhammad (peace be upon him) died on the 8th of June 632 AD. However, Prophet Muhammad is not Islam religion founder. Islam religion is God religion per God Quran revelation to prophet Muhammad through the Angel Gabriel (Jibril) in year 610 AD. See question listed below for more information.
After Muhammad died the challenges were to allow for the Prevalence of Islamic edicts and the protection of Muslims
Muhammad was the founder and earliest leader of Islam. His date of birth is unknown but he died in Medina, Saudi Arabia in 632 AD.
A:Muhammad, the founder of Islam, was born in 570 CE, just over 1440 years ago. He died in 632 CE.
Prophet Muhammad (peace be upon him) died in year 632 AD while in Medina (currently in the Kingdom of Saidi Arabia).
Askia Muhammad was an imp ruler because of the achievements he madeex: the spread of Islam
Muhammad Prophet was born in 570 CE, in a small town in Arabia. Around 610 CE he founded Islam. Some people didn't like Islam so they forced Muhammad and his followers to flee to Medina in 622 CE. Within 10 years, the Prophet won considerable support and had a devoted army with him. When Muhammad died in 632 CE, all of Arabia had converted to Islam. Therefore, Arabia submitted to Islam around 632 CE.
Muhammad died in 633 C.E.; Islam arrived in Spain in 711 C.E., meaning 78 years passed.
Prophet Muhammad (S) died in the year 632 and the peak of the Rashidun Caliphate was in 654, when Islam spread from Morocco to Iran.
Muhammad was born in 570. and the Revelation which is the start of Islam was in 610. Note that Muhammad was said Jesus was disappeared and did not died. he predicted Jesus and Mehdi (Muslims 12th Imam which he was disappeared too) will return before the day of Judgement to make peace in world. Muhammad also said many signs about to what happens before this event. (some of these signs have been seen until now. year 2011)
His closest friend, first to embrace Islam, the Prophet's father in law, Hazrat Abu Bakr Siddique RAu