Shia in the context of Sunni-Shia divide

Islam is India's second-largest religion, with 14.2% of the country's population, or approximately 172.2 million people, identifying as adherents of Islam in a 2011 census. India has the third-largest number of Muslims in the world. Most of India's Muslims are Sunni, with Shia making up around 15% of the Muslim population.

Islam first spread in southern Indian communities along the Arab coastal trade routes in Gujarat and in Malabar Coast shortly after the religion emerged in the Arabian Peninsula. Later, Islam arrived in the northern inland of Indian subcontinent in the 7th century when the Arabs invaded and conquered Sindh. It arrived in Punjab and North India in the 12th century via the Ghaznavids and Ghurids conquest and has since become a part of India's religious and cultural heritage. The Barwada Mosque in Ghogha, Gujarat built before 623 CE, Cheraman Juma Mosque (629 CE) in Methala, Kerala and Palaiya Jumma Palli (or The Old Jumma Masjid, 628–630 CE) in Kilakarai, Tamil Nadu are three of the first mosques in India which were built by seafaring Arab merchants. According to the legend of Cheraman Perumals, the first Indian mosque was built in 624 CE at Kodungallur in present-day Kerala with the mandate of the last ruler (the Tajudeen Cheraman Perumal) of the Chera dynasty, who converted to Islam during the lifetime of the Islamic prophet Muhammad (c. 570–632). Similarly, Tamil Muslims on the eastern coasts also claim that they converted to Islam in Muhammad's lifetime. The local mosques date to the early 700s.

The Fatimid Caliphate (/ˈfætɪmɪd/; Arabic: الخلافة الفاطمیّة, romanized: al-Khilāfa al-Fāṭimiyya), also known as the Fatimid Empire, was a caliphate extant from the tenth to the twelfth centuries CE under the rule of the Fatimids, an Isma'ili Shi'a dynasty. Spanning a large area of North Africa and West Asia, it ranged from the western Mediterranean in the west to the Red Sea in the east. The Fatimids traced their ancestry to the Islamic prophet Muhammad's daughter Fatima and her husband Ali, the first Shi'a imam. The Fatimids were acknowledged as the rightful imams by different Isma'ili communities as well as by denominations in many other Muslim lands and adjacent regions. Originating during the Abbasid Caliphate, the Fatimids initially conquered Ifriqiya (roughly present-day Tunisia and north-eastern Algeria). They extended their rule across the Mediterranean coast and ultimately made Egypt the center of the caliphate. At its height, the caliphate included—in addition to Egypt—varying areas of the Maghreb, Sicily, the Levant, and the Hejaz.

Between 902 and 909, the foundation of the Fatimid state was realized under the leadership of da'i (missionary) Abu Abdallah, whose conquest of Aghlabid Ifriqiya with the help of Kutama forces paved the way for the establishment of the Caliphate. After the conquest, Abdallah al-Mahdi Billah was retrieved from Sijilmasa and then accepted as the Imam of the movement, becoming the first Caliph and founder of the dynasty in 909. In 921, the city of al-Mahdiyya was established as the capital. In 948, they shifted their capital to al-Mansuriyya, near Kairouan. In 969, during the reign of al-Mu'izz, they conquered Egypt, and in 973, the caliphate was moved to the newly founded Fatimid capital of Cairo. Egypt became the political, cultural, and religious centre of the empire and it developed a new and "indigenous Arabic culture". After its initial conquests, the caliphate often allowed a degree of religious tolerance towards non-Shi'a sects of Islam, as well as to Jews and Christians. However, its leaders made little headway in persuading the Egyptian population to adopt its religious beliefs.

Alawites (Arabic: العلويون, romanized: al-ʿAlawiyyūn) are an ethnoreligious group who live primarily in the Levant region in West Asia and follow Alawism, an offshoot of Shia Islam as a ghulat branch during the ninth century. Alawites venerate Ali ibn Abi Talib, the "first Imam" in the Twelver school, as a manifestation of the divine essence. It is the only ghulat sect still in existence today. The group was founded during the ninth century by Ibn Nusayr, who was a disciple of the tenth Twelver Imam, Ali al-Hadi, and of the eleventh Twelver Imam, Hasan al-Askari. For this reason, Alawites are also called Nusayris, although this term can be considered derogatory in the present day.

Surveys suggest Alawites represent an important portion of the Syrian population and are a significant minority in the Hatay Province of Turkey and northern Lebanon. There is also a population living in the village of Ghajar in the Golan Heights, where there had been two other Alawite villages (Ayn Fit and Za'ura) before the Six-Day War. The Alawites form the dominant religious group on the Syrian coast and towns near the coast, which are also inhabited by Sunnis, Christians, and Ismailis. They are often confused with the Alevis, a religious group in Turkey that shares certain similarities with the Alawites but has key differences.

A madhhab (Arabic: مَذْهَب, romanized: madhhab, lit. 'way to act', IPA: [ˈmaðhab], pl. مَذَاهِب, madhāhib, [ˈmaðaːhib]) refers to any school of thought within Islamic jurisprudence. The major Sunni madhhab are Hanafi, Maliki, Shafi'i and Hanbali. They emerged in the ninth and tenth centuries CE and by the twelfth century almost all Islamic jurists aligned themselves with a particular madhhab. These four schools recognize each other's validity and they have interacted in legal debate over the centuries. Rulings of these schools are followed across the Muslim world without exclusive regional restrictions, but they each came to dominate in different parts of the world. For example, the Maliki school is predominant in North and West Africa; the Hanafi school in South and Central Asia; the Shafi'i school in East Africa and Southeast Asia; and the Hanbali school in North and Central Arabia. The first centuries of Islam also witnessed a number of short-lived Sunni madhhabs. The Zahiri school, which is considered to be endangered, continues to exert influence over legal thought. The development of Shia legal schools occurred along the lines of theological differences and resulted in the formation of the Ja'fari madhhab amongst Twelver Shias, as well as the Isma'ili and Zaydi madhhabs amongst Isma'ilis and Zaydis respectively, whose differences from Sunni legal schools are roughly of the same order as the differences among Sunni schools. The Ibadi legal school, distinct from Sunni and Shia madhhabs, is predominant in Oman. Unlike Sunnis, Shias, and Ibadis, non-denominational Muslims are not affiliated with any madhhab.

The transformations of Islamic legal institutions in the modern era have had profound implications for the madhhab system. With the spread of codified state laws in the Muslim world, the influence of the madhhabs beyond personal ritual practice depends on the status accorded to them within the national legal system. State law codification commonly drew on rulings from multiple madhhabs, and legal professionals trained in modern law schools have largely replaced traditional ulama as interpreters of the resulting laws. In the 20th century, some jurists began to assert their intellectual independence from traditional madhhabs. With the spread of Salafi influence and reformist currents in the 20th century; a handful of Salafi scholars have asserted independence from being strictly bound by the traditional legal mechanisms of the four schools. Nevertheless, the majority of Sunni scholarship continues to uphold post-classical creedal belief in rigorously adhering (Taqlid) to one of the four schools in all legal details.

Egyptians (Arabic: مِصرِيُّون, romanized: Miṣriyyūn, IPA: [mɪsˤrɪjˈjuːn]; Egyptian Arabic: مَصرِيِّين, romanized: Maṣriyyīn, IPA: [mɑsˤɾɪjˈjiːn]; Coptic: ⲣⲉⲙⲛ̀ⲭⲏⲙⲓ, romanized: remenkhēmi) are an ethnic group native to the Nile Valley in Egypt. Egyptian identity is closely tied to geography. The population is concentrated in the Nile Valley, a small strip of cultivable land stretching from the First Cataract to the Mediterranean and enclosed by desert both to the east and to the west. This unique geography has been the basis of the development of Egyptian society since antiquity.

The daily language of the Egyptians is a continuum of the local varieties of Arabic; the most famous dialect is known as Egyptian Arabic or Masri. Additionally, a sizable minority of Egyptians living in Upper Egypt speak Sa'idi Arabic. Egyptians are predominantly adherents of Sunni Islam with a small Shia minority and a significant proportion who follow native Sufi orders. A considerable percentage of Egyptians are Coptic Christians who belong to the Coptic Orthodox Church, whose liturgical language, Coptic, is the most recent stage of the ancient Egyptian language and is still used in prayers along with Egyptian Arabic.

Nasiriyah (UK: /ˌnæzɪˈriːə/ NAZ-irr-EE-ə, US: /ˌnɑːsɪ-/ NAH-sirr-; Arabic: ٱلنَّاصِرِيَّة, romanized: an-Nāṣiriyya, BGN: An Nāşirīyah, IPA: [ænnɑːsˤɪˈrɪjjæ]), also spelled Nassiriya or Nasiriya, is a city in Iraq, the capital of the Dhi Qar Governorate. It lies on the lower Euphrates, about 360 km (225 miles) south-southeast of Baghdad, near the ruins of the ancient city of Ur. Its population in 2018 was about 558,000, making it the ninth-largest city in Iraq. It had a diverse population of Muslims, Mandaeans and Jews in the early 20th century; today its inhabitants are predominantly Shia Muslims.

Nasiriyah was founded by the Muntafiq tribe in the late 19th century during the era of Ottoman Iraq. It has since become a major hub for transportation. Nasiriyah is the center of a date-growing area. The city's cottage industries include boat-building, carpentry and silver working. The city museum has a large collection of Sumerian, Assyrian, Babylonian, and Abbasid artifacts. The ruins of the ancient cities of Ur and Larsa are nearby and the Euphrates merges with the Tigris for the final time about 10 kilometres from the city.

Islam is the majority religion in Azerbaijan. Estimates include 97.3% in 2020 by The World Factbook and 99.2% in the 2006 Demographic and Health Survey according to Pew Research Center of the population identifying as Muslim. A majority of them belong to the Shia branch (55–65% of Muslims), while a significant minority (35%–45%) are Sunni. Traditionally, the differences between these two branches of Islam have not been sharply defined in Azerbaijan.

Shia Muslims in the country typically adhere to the Ja'fari school of Shia Islam, while most Sunni Muslims either the Hanafi or Shafi'i school. Due to many decades of Soviet atheist policy, Muslim religious affiliation in Azerbaijan is largely cultural and ethnic rather than religious. Shia Islam is prevalent in the western, central, and southern regions of the country. Traditionally, villages around Baku and the Lankaran region are considered Shia strongholds. In contrast, Sunni Islam is dominant in the northern regions.

The Kakuyids (also called Kakwayhids, Kakuwayhids or Kakuyah) (Persian: آل کاکویه) were a Shia Muslim dynasty of Daylamite origin that held power in western Persia, Jibal and Kurdistan (c. 1008–c. 1051). They later became atabegs (governors) of Yazd, Isfahan and Abarkuh from c. 1051 to 1141. They were related to the Buyids.

Muslims make up approximately 95 percent of the population of Mali. The majority of Muslims in Mali are Non denominational and Malikite Sunni, influenced with Sufism. Ahmadiyya and Shia branches are also present.

Islam has been present in West Africa for over a millennium, and Mali has been the center of various Islamic empires, such as the Ghana Empire and the Songhai Empire. Mali was a French colony and now follows the secular French model in which the government does not intervene in religious matters.

In Cameroon, Islam is a minority faith practiced by around 30.6% of the total population as of 2022. Among Cameroonian Muslims, approximately 40% identify themselves as Non-denominational, 27% Sunni, 2% Ahmadi and 3% Shia, while the majority of the rest do not associate themselves with a particular group and sect.

In Cameroon, 48% of Muslims belong to a Sufi Tariqah (order). The Fulani, a pastoral nomadic group, spread Islam in early 19th century West Africa largely through commercial activity and Sufi brotherhoods (Qadiri and Tijani). In the northern provinces, the locally dominant Fulani is overwhelmingly Muslim. Other ethnic groups, known collectively as the Kirdi, generally practice some form of Islam. The Bamoun ethnic group of the West Province is also largely Muslim.

Raqqa (Arabic: ٱلرَّقَّة, romanized: ar-Raqqah, also al-Raḳḳa), is a city in Syria on the North bank of the Euphrates River, about 160 kilometres (99 miles) east of Aleppo. It is located 40 kilometres (25 miles) east of the Tabqa Dam, Syria's largest dam. The Hellenistic, Roman, and Byzantine city and bishopric Callinicum (formerly a Latin and now a Maronite Catholic titular see) was the capital of the Abbasid Caliphate between 796 and 809, under the reign of Harun al-Rashid. It was also the capital of the Islamic State from 2014 to 2017. With a population of 531,952 based on the 2021 official census, Raqqa is the sixth largest city in Syria.

During the Syrian Civil War, the city was captured in 2013 by the Syrian opposition and then by the Islamic State. ISIS made the city its capital in 2014. As a result, the city was hit by airstrikes from the Syrian government, Russia, the United States, and several other countries. Most non-Sunni religious structures in the city were destroyed by ISIS, most notably the Shia Uwais al-Qarni Mosque, while others were converted into Sunni mosques. On 17 October 2017, following a lengthy battle that saw massive destruction to the city, the Syrian Democratic Forces (SDF) declared the liberation of Raqqa from the Islamic State to be complete.

Jabal Amil (Arabic: جبل عامل, romanized: Jabal ʿĀmil; also spelled Jabal Amel and historically known as Jabal Amila) is a cultural and geographic region in Southern Lebanon largely associated with its long-established, predominantly Twelver Shia Muslim inhabitants. Its precise boundaries vary, but it is generally defined as the mostly highland region on either side of the Litani River, between the Mediterranean Sea in the west and the Wadi al-Taym, Beqaa and Hula valleys in the east.

The Shia community in Jabal Amil is thought to be one of the oldest in history. In the 10th century, several Yemeni tribes with Shi'ite inclinations, including the 'Amila tribe, had established themselves in the region. 'Amili oral tradition and later writings assert that a companion of the Islamic prophet Muhammad and an early supporter of Ali, Abu Dharr al-Ghifari (d. AD 651), introduced Shi'ism to the area. Although there is frequent occurrence of this account in many religious sources, it is largely dismissed in academia, and historical sources suggest Shia Islam largely developed in Jabal Amil between the mid-8th and 10th centuries (750–900). Twelver Shia tradition in southern Lebanon credits the Amila, as the progenitors of the community, by having sided with the faction of Ali in the mid-7th century.

Abu Ali al-Mansur (Arabic: أبو علي المنصور, romanized: Abū ʿAlī al-Manṣūr; 13 August 985 – 13 February 1021), better known by his regnal name al-Hakim bi-Amr Allah (Arabic: الحاكم بأمر الله, romanized: al-Ḥākim bi-Amr Allāh, lit. 'The Ruler by the Order of God'), was the sixth Fatimid caliph and 16th Ismaili imam (996–1021). Al-Hakim is an important figure in a number of Shia Ismaili sects, such as the world's 15 million Nizaris and 1–2 million Musta'lis, in addition to 2 million Druze.

Histories of al-Hakim can prove controversial, as diverse views of his life and legacy exist. Historian Paul Walker writes "Ultimately, both views of him, the mad and despotic tyrant (like Germanic and Roman despots) irrationally given to killing those around him on a whim, and the ideal supreme ruler, divinely ordained and chosen, whose every action was just and righteous, were to persist, the one among his enemies and those who rebelled against him, and the other in the hearts of true believers, who, while perhaps perplexed by events, nonetheless remained avidly loyal to him to the end." Appraisals of the more controversial accounts of al-Hakim's life and rule have earned him such monikers as "the Nero of Egypt", and "the Mad Caliph".

The Imam Ali Shrine (Arabic: حَرَم ٱلْإِمَام عَلِيّ, romanized: Ḥaram al-ʾImām ʿAlī), also known as the Mosque of Ali (Arabic: مَسْجِد عَلِيّ, romanized: Masjid ʿAlī), is a Shi'ite mosque and shrine, located in Najaf, in the Najaf Governorate of Iraq. The site is a mausoleum which Shia and Sunni Muslims believe contains the tomb of Ali ibn Abi Talib, a cousin, son-in-law and companion of the Islamic prophet Muhammad. The Shias consider Ali as their first imam and the first of the twelve caliphs of Muhammad, and the Sunnis regard him as the fourth Sunni Rashid Caliph. According to Shia belief, buried next to Ali within this mosque are the remains of Adam and Nuh (Noah). Each year, millions of pilgrims visit the shrine and pay tribute to Imam Ali.

The shrine monument has been built and rebuilt numerous times throughout history.