Apostasy in Islam is commonly defined as the abandonment of Islam by a Muslim, in thought, word, or through deed. It includes not only explicit renunciations of the Islamic faith by converting to another religion or abandoning religion, but also blasphemy or heresy by those who consider themselves Muslims, through any action or utterance which implies unbelief, including those who deny a "fundamental tenet or creed" of Islam. An apostate from Islam is known as a murtadd (مرتدّ).
The caliphate of the Ottoman Empire was the claim of the heads of the Turkish Ottoman dynasty to be the caliphs of Islam in the late medieval and early modern era. During the period of Ottoman expansion, Ottoman rulers claimed caliphal authority after the conquest of Mamluk Egypt by sultan Selim I in 1517 and the abolition of the Mamluk-controlled Abbasid Caliphate. This left Selim as the Defender of the Holy Cities of Mecca and Medina and strengthened the Ottoman claim to leadership in the Muslim world.
The conversion of non-Islamic places of worship into mosques occurred during the life of Muhammad and continued during subsequent Islamic conquests and invasions and under historical Muslim rule. Hindu temples, Jain Temples, churches, synagogues, and Zoroastrian fire temples have been converted into mosques.
Islam is an Abrahamic monotheistic religion centered on the Quran and the teachings of Muhammad, the religion's founder. Adherents of Islam are called Muslims, who are estimated to number approximately 1.9 billion worldwide and are the world's second-largest religious population after Christians.
Forced conversion is the adoption of a religion or irreligion under duress. Someone who has been forced to convert to a different religion or irreligion may continue, covertly, to adhere to the beliefs and practices which were originally held, while outwardly behaving as a convert. Crypto-Jews, Crypto-Christians, Crypto-Muslims and Crypto-Pagans are historical examples of the latter.
Growth of religion involves the spread of individual religions and the increase in the numbers of religious adherents around the world. In sociology, desecularization is the proliferation or growth of religion, most commonly after a period of previous secularization. Statistics commonly measure the absolute number of adherents, the percentage of the absolute growth per-year, and the growth of converts in the world.
Christianity is a minority religion in the Maldives. An estimated 0.3 or 0.4% of the population is Christian.
Abdulhamid or Abdul Hamid II was the 34th sultan of the Ottoman Empire, from 1876 to 1909, and the last sultan to exert effective control over the fracturing state. He oversaw a period of decline with rebellions, and presided over an unsuccessful war with the Russian Empire (1877–78), the loss of Egypt and Cyprus from Ottoman control, followed by a successful war against the Kingdom of Greece in 1897, though Ottoman gains were tempered by subsequent Western European intervention.
Yazidis, also spelled Yezidis, are a Kurdish-speaking endogamous religious group indigenous to Kurdistan, a geographical region in Western Asia that includes parts of Iraq, Syria, Turkey, and Iran. The majority of Yazidis remaining in the Middle East today live in Iraq, primarily in the governorates of Nineveh and Duhok.
Islam in Georgia was introduced in 654 when an army sent by the Third Caliph of Islam, Uthman, conquered Eastern Georgia and established Muslim rule in Tbilisi. Currently, Muslims constitute approximately 9.9% of the Georgian population. According to other sources, Muslims constitute 10-11% of Georgia's population.
Islamic missionary work or dawah means to "invite" to Islam. After the death of the Islamic prophet Muhammad, from the 7th century onwards, Islam spread rapidly from the Arabian Peninsula to then rest of the world through either trade, missionaries, exploration or gradual conversions after conquests.
Christian population growth is the population growth of the global Christian community. According to a 2011 Pew Research Center survey, there were more than 2.2 billion Christians around the world in 2010, more than three times as many as the 600 million recorded in 1910. However, this rate of growth is slower than the overall population growth over the same time period. In 2020, Pew estimated the number of Christians worldwide to be around 2.38 billion. According to various scholars and sources, high birth rates and conversions in the Global South were cited as the reasons for the Christian population growth. In 2023, it was reported: "There will be over 2.38 billion Christians worldwide by the middle of 2023 and around 2.9 billion by 2050, according to a report published by Pew Pew research centre.
The main religion in Morocco is Sunni Islam, which is also the state religion of the country. Officially, 99% of the population are Muslim, and virtually all of those are Sunni. The second-largest religion in the country is Christianity, but most Christians in Morocco are foreigners. There is a community of the Baháʼí Faith. Only a fraction of the former number of Maghrebi Jews have remained in the country, many having moved to Israel.
The term Laraman in Albanian refers to crypto-Christians who adhered to Islam officially but continued to practice Christianity within the household during the Ottoman era. It was derived from the Albanian adjective i larmë, meaning "variegated, motley, two-faced", a metaphor of "two-faithed" (l'arë), a reference to the Laramans following both Christianity and Islam (nominally).
The spread of Islam spans almost 1,400 years. The early Muslim conquests that occurred following the death of Muhammad in 632 CE led to the creation of the caliphates, expanding over a vast geographical area; conversion to Islam was boosted by Arab Muslim forces expanding over vast territories and building imperial structures over time. Most of the significant expansion occurred during the reign of the rāshidūn ("rightly-guided") caliphs from 632 to 661 CE, which were the first four successors of Muhammad. These early caliphates, coupled with Muslim economics and trading, the Islamic Golden Age, and the age of the Islamic gunpowder empires, resulted in Islam's spread outwards from Mecca towards the Indian, Atlantic, and Pacific Oceans and the creation of the Muslim world. The Islamic conquests, which culminated in the Arab empire being established across three continents, enriched the Muslim world, achieving the economic preconditions for the emergence of this institution owing to the emphasis attached to Islamic teachings. Trade played an important role in the spread of Islam in some parts of the world, such as Indonesia. During the early centuries of Islamic rule, conversions in the Middle East were mainly individual or small-scale. While mass conversions were favored for spreading Islam beyond Muslim lands, policies within Muslim territories typically aimed for individual conversions to weaken non-Muslim communities. However, there were exceptions, like the forced mass conversion of the Samaritans.
The Islamization of Albania occurred as a result of the Ottoman conquest of the region beginning in 1385. The Ottomans through their administration and military brought Islam to Albania.
