In 656, Caliph Uthman, the third caliph to rule after the death of the Prophet, was assassinated at his home in Medina (now Saudi Arabia) by besieging Muslim rebels from Mesopotamia.

CNN: Wednesday,

The first section begins with Arab conquests following the death of the Prophet Muhammad in 632 and takes us to the year 1000, by which time Arab caliphs held sway over an empire stretching from Afghanistan to Spain.

WSJ: Islamic Art at the Louvre | By Lee Lawrence

They regard the denial of Ali's alleged right to succeed the prophet on his death, his subsequent murder, and the martyrdom of his son Hussein at Karbala (in present-day Iraq) later as seminal events.

WSJ: Sadanand Dhume: The Plight of Pakistan's Shia

Under Pakistan's penal code, anyone who "defiles the sacred name of the Holy Prophet" can be punished by death or life imprisonment.

BBC: Pakistani Christian Asia Bibi 'has price on her head'

Dhani laughed again when I asked him if the story of Siti Jenar's death is true, and if he's been compared to the prophet.

CENTERFORSECURITYPOLICY: Indonesian rocks the cradle of Islamofascism

Hamza Kashgari posted a controversial tweet on the prophet's birthday last week that sparked more than 30, 000 responses and several death threats.

BBC: Saudi detained in Malaysia for insulting Prophet tweet

Dressed in a black burqa from head to toe and uttering death threat after death threat, the woman -- a wife and mother -- says she is defending her religion and her prophet if she manages to kill Vilks.

CNN: Artist defiantly draws Prophet Mohammed