Worldwide, the combined number of Muslims, in all forms, has been estimated at around 1.6 billion individuals (1600 million), or about 23% of the total world population.
(October 2009 Pew Forum Study. See link below.)
they are called Muslims.
It's Muslim and lslam.......
Prophet Muhammad (peace be upon him) began preaching in Makkah about 610 AD
190,000,000 people follow Twitter.
Because they are not Christian.
it was foundedin 622 c.e
Shari 'ah
As many as you want.
too many
One view95% people in the world follow a religion.
Because many like to follow it and enjoy. Not like fat people or lazy people don't follow it.
5,786,324,000