There was a divide between the Muslim world which gave way to the creation of the Sunni (majority) and Shi'a (minority).
no. the shiiah is sect within Islam religion.
the shiite and sunni comprised two factions within Islam religion.
The 1300's to 1800's.
There is no one specific branch of Islam that can be characterized as the "most liberal." However, branches such as Sufism and progressive interpretations within Sunni and Shia Islam are often associated with more liberal and inclusive practices and beliefs. It's important to note that the level of liberalism or conservatism within Islam can vary among individuals and communities within any given branch.
Suffis were religious mystics within classical Islam civilizations.
No religion "inspired" the Ottoman Empire. The Ottoman Empire had Sunni Islam as its State Religion, but it was not a view or tenet of Islam to create an Ottoman Empire.
there are 2 main groups shiites and sunnis then there are branches within each
You start lovemaking with your wife (within licit marriage) by oral sex as a foreplay. Refer to related question below on oral sex within Islam.
Sunni Islam and Shiite Islam are the largest categories (counting >99% of all Muslims worldwide).
The word "denomination" applies specifically to Christianity and does not have an analog in Islam. In Islam there are sects and within sects there are schools. On separate axes, Muslims self-divide along questions of religiosity (liberal to extremist), political affiliation (secularist to islamist), and orthodoxy (jurisprudential to mystical). There are three major sects (Sunni, Shiite, and Ibadi) and around a dozen schools. These should be multiplied by the other axes and divisions.
If you believe in Allah and Mohammed as his prophet than you are Muslim. Some people look at the minor details a little different, and they are put in categories. This is not prohibited in Islam. It is people in power who want to divide an concur that like to differentiate and tare apart.
Caravans are groups of manned camels with goods that travel in unison. They have no special meaning within Islam, but as Islam came out of Arabia, where there are numerous caravans, they play an important part of Islamic History.