There is no real division between Sunni Muslims and Shi'a Muslims. The division is very exaggrated after the war in Iraq by the US supported by other countries.
Both Sunnis and Shiites are Muslims.
No one has the right to expel anyone out of Islam and to consider him/her unbeliever (or Kafir) so far:
As for Sunnis and Shiites, they, both, believe that No God except one and only one God, the Creator with no partner, no father, no son, no companion, and no resemblance and that prophet is His messenger and prophet. They both believe in God Angels, all God prophets, all God holy book, the Day of Judgment, and destiny. They believe in the five Pillars of Islam. They both face the direction of Kaaba when praying. They pray in any mosque regardless the praying leader is Sunni or Shiite. They may differ in some minor details of rituals but these details are not critical to neither the Shiites nor the Sunnis.
The major difference is historical. The Shiites did not agree on the elected Caliphs (who followed Prophet Muhammad after his death). They believed that the Caliphs should only be within Prophet Muhammad descendants and family. Accordingly, they were supporting Ali Ibn about Taleb (Prophet cousin and the husband of his daughter Fatima) to be the first Caliph. However, they didn't protest against the elected Caliphs (Abou Bakr, Omar, and Ottman) and even Ali, himself, was good supporter and adviser to the three Caliphs until he was elected as the fourth Caliph.
Sunnis constitute over 85 % of all world Muslims. Shiites are majority mainly in Iran and Iraq and some parts of Pakistan.
Religion :)
an increasing division of labor between men and women.
The basis of Judaism, Christianity and Islam is the belief in the ONENESS of Almighty God (Allah - in Arabic).
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No, they are from Islam.
ISLAM
The first basis belief of Islam is the belief that there is only One God (Allah) and that the prophet Muhammad (pbuh) is his messenger.
There are five pillars in Islam. The pillars are important because they are basics and the basis of Islam.
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Islam.
Division of Powers- Basic principle of federalism and constitutional provisions by which governmental powers are divided on a geographic basis (in the U.S. between the National Government and the States).
In true Islam, they don't, because terrorism has no basis in Islam.