Islam was founded in The middle east, the main prophet of Islam is Mohammed and it connects to Christianity and Judaism by only believing in one god and having to fast at one point in all 3 religions.
The Quran is the Islam holy book. Muslims usually pray in a mosque and are guided by the "Imam' which is there religious leader.
There are two type of Muslims which are Sunni And Shia'a. Shia'a have slight different beliefs which are false but they still count as Muslims.
There are 2 holidays for Muslims, One of them is called "Eid Al Fitir" which is the day right after Ramadan, and the other one is called "Eid Al Adha" Which is about a month and a half after Eid Al Fitir