Answer: It is not realy a "split". That would imply two relatively large groups. The fact is that at least 85% of those who call themselves Muslim are all from one group. They are the people who follow the Qur'an and the example of Prophet Muhammad (peace be upon him). They are called 'sunni' Muslims, by some people. In fact, they are simply true Muslims.
The other 15% are all deviant sects that have corrupted the true, original teachings. Anyone who studies Islam can see how the other groups have changed the original message.
Shiites, Ahmadiyyah, Alawi, Ismaili, Druze are some names of deviant groups.
In fact, Muhammad said that there would be such deviants; and he condemned their teachings as leading away from God. He said that the only rightly-guided group would be the one that stuck to the Qur'an and to his example. We thank God that it is the clear majority.
For an understanding of why the Shiite sect developed, you can go to Wikipedia for a detailed explanation. For examples of how they have gone astray from the healthy and true religion, you can go to You Tube and search: Real Shiah Faces.
The San Bushmen are nomadic hunter-gatherers who inhavit the Kalahari Desert.
Mexico’s geography’s most prominent features are the
mountains. The country features lots of mountain ranges, not just individual
mountains. There is the Trans-Mexican Volcanic Belt, Sierra de Istatan, Sierra
Madre Oriental, Sierra Madre del Sur, Sierra Madre Occidental, and Sierra de
San Pedro Mártir. Some of these mountain ranges feature ultra-prominent summits
or peaks at least 1,500 meters high.
These are all of the pillars of Islam:
1. Shahada (Faith)
2. Salat (Prayer)
3. Zakat (Charity)
4. Sawm (Fasting)
5. Hajj (Pilgrimage to Makkah)
An example to Number 3 is when somebody gives charity to a poor person.
Hope this helps!