Eid ul Fitr on the first day of Shawwal and Eid ul Azha on the tenth day of Zil Hajj.
I'd have to say Christianity for certain and with the rise of Islam, then Islam is number two.
The holidays of Islam are Eid Al-Adha and Eid Al-Fitr.
The birth and death/resurrection of Christ are the main holidays for Christians - Christmas and Easter.
There are only 2 holidays in Islam: Eid Al-fitr and Eid Al-Adha
in Islam, there are two diffrent but equally special holidays. one is Eid-ul-Fitr, a holiday that we celebrate in the end of Ramadan. Ramadan is a month where we do not eat the whole day. and we celebrate eid-ul-fitr for the month being finished. the second holiday that we celebrate is eid-ul-adha, the celebration of sacrifice.The main festivals of Islam is fasting and praying. This event lasts a whole month.
Islam or Christianty
The two main groups of Islam are the Shia and Sunni. They divided into these groups after Mohamed died and they could not decide on just one successor.
The two main branches of Islam in Iraq are Sunnis and Shiites. However, both branches share many common Islam principles and rules. Refer to related question below.
Aeed
Christianity and Islam
islam
It is Islam religion. Muslims are belonging to the main two different schools: Shiites and Sunnis.