Note that all these estimates come from a single source. The Jack Reacher star was reportedly a devout Catholic before he joined the Church of Scientology. All of the below come from the U.S. Department of State 2009 International Religious Freedom Report,[71] based on the highest estimate of people identified as indigenous or followers of indigenous religions that have been well-defined. This is a list of religious populations by number of adherents and countries. Mahwah, NJ: PRIMEDIA Reference Inc. (1999). Madonna was raised Roman Catholic and she converted to Kabbalah in 1996. Nearly all of Arabia converted to Islam by 632, the year of Muhammad's death, and in the years since it has grown to become the world's second largest religion, mostly concentrated in the Middle East and Southeast Asia. Countries with the greatest proportion of Jews (as of 2017[update]): Countries with the greatest proportion of Baháʼís (as of 2010[update]) with a national population ≥200,000: Largest Christian populations (as of 2011[update]): Largest Hindu populations (as of 2020)[107]: Largest Jewish populations (as of 2017[update]): Largest Baháʼí populations (as of 2010[update]) in countries with a national population ≥200,000:[114]. Charlie Sheen was raised Catholic and became a born-again Christian in the late-1990s, but today it is unclear what, if any, religion he follows. In the next half century or so, Christianity’s long reign as the world’s largest religion may come to an end, according to a just-released report that builds on Pew Research Center’s original population growth projections for religious groups. Britannica Book of the Year]; p. 695. This is the only place where Sikhs are in the majority. Some religions have harmonized with local cultures and can be seen as a cultural background rather than a formal religion. She has also said that she is studying the Koran. But this could change if the current demographic trends continue, according to research published by … Lists of famous and notable religious devotees around the world, practicing today and throughout history. Some of these celebrities converted due to marriage, while others converted after experiencing personal traumas. However, this source gives a relative indication of the size of the Spiritist communities within each country. Please update this article to reflect recent events or newly available information. Deciding to convert to another religion is a huge deal, culturally and personally. 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[2] See Spiritual but not religious. Tom Cruise was reportedly a devout Catholic before he joined the Church of Scientology. Half of this group is theistic but nonreligious. Learn more» Baha'i. Shia LaBeouf converted from Judaism to Christianity. Michael Jackson was raised as a Jehovah's Witness and he converted to Islam later in life. Islam is the world's second-largest religion, after Christianity. Despite the popularity of its great classics the I Ching and the Tao Te Ching, the specific practices of Taoism have not been promulgated in America with much success;[60] these religions are not ubiquitous worldwide in the way that adherents of bigger world religions are, and they remain primarily an ethnic religion. Sikhs have emigrated to countries all over the world – especially to English-speaking and East Asian nations. Thus, over half of this group is theistic and/or influenced by religious principles, but nonreligious/non-practicing and not true atheists or agnostics. 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