The term Muslim world (also known as the Ummah)
In a religious sense, the Islamic Ummah refers to those who adhere to the teachings of Islam, referred to as Muslims. In a cultural sense, the Muslim Ummah refers to Islamic civilization, exclusive of non-Muslims living in that civilization. In a modern geopolitical sense, the term Islamic Nation usually refers collectively to Muslim-majority countries, states, districts, or towns.
Although Islamic lifestyles emphasize unity and defense of fellow Muslims, schools and branches (see Shia–Sunni relations, for example) exist. In the past, both Pan-Islamism and nationalist currents have influenced the status of the Muslim world.
As of 2010, over 1.6 billion or about 23.4% of the world population are Muslims.
By the percentage of the total population in a region considering themselves Muslim, 24.8% in Asia-Oceania do, 91.2% in Middle East-North Africa, 29.6% in Sub-Saharan Africa, around 6.0% in Europe, and 0.6% in the Americas.
Muslim history involves the history of the Islamic faith as a religion and as a social institution. The history of Islam began in Arabia with the Islamic Prophet Muhammad’s first recitations of the Quran in the 7th century in the month of Ramadan.
However, Islam under the Rashidun Caliphate grew rapidly. Geographic expansion of Muslim power extended well beyond the Arabian Peninsula in the form of a vast Muslim Empire with an area of influence that stretched from northwest India, across Central Asia, the Middle East, North Africa, southern Italy, and the Iberian Peninsula, to the Pyrenees.
A century after the death of last Islamic prophet Muhammad, the Islamic extended from Spain in the west to Indus in the east. The subsequent empires such as those of the Abbasids, Fatimids, Almoravids, Seljukids, Ajuran, Adal and Warsangali in Somalia, Mughals, and Safavids in Persia and Ottomans were among the influential and distinguished powers in the world.
O mankind! We created you from a single soul, male and female, and made you into nations and tribes, so that you may come to know one another. Truly, the most honored of you in God’s sight is the greatest of you in piety. God is All-Knowing, All-Aware. [Quran, 49:13]