1.Abu Bakr
2.umar
3.Uthman
4.Ali
Rashdun means 'the rightly guided one' .A caliph and religious head of the Islamic religion. There are first four Rashduns or four caliphs,the heads of Islamic religion.
The religious head (caliph) of Islamic religion.
Four.
* * * *
Islam did start in the so-called "Saudia-Arabia";
Christianity, Islam, Buddhism, Hinduism
Cows, buffalos etc have four nipples but animals have nothing with Islam. They are creation of Almighty Allah.
EPA
Four Hijree
The major religions include:Hinduism, Buddhism, Islam, Confucianism, Christianity, and Judaism
Iraq
India, Europe, Islam, and china