Wikipedia's first sentence called it “concept in modern thought and practice”. Today it says “philosophical and jurisprudential concept for defining political distance in the relationship between religious”.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
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The opening as it read in 2005
The separation of church and state is a concept in modern thought and practice, whereby the structures of state or national government are kept separate from those of religious institutions. The concept has long been a topic of political debate. The term "church" is associated with Christianity, but the phrase is usually used to refer to religion and religious institutions in general. In countries where other religions are dominant, the words mosque , temple , or synagogue are often substituted. In the United States, separation of church and state is governed by the Establishment Clause of the First Amendment to the U.S. Constitution and by legal precedents interpreting that clause. There are a variety of views regarding the degree of separation that should exist between church and state. Some, often referred to as secularists, assert that state should be kept entirely separate from religion. Others assert that the state ought to be permitted to become involved with religion (such as by giving financial support), but ought not establish one religion as the state religion , require religious observance, or legislate dogma. Others, sometimes known as theocrats , assert that the state should be inseparable from religion, and advocate an established church . A related topic is civil religion . The separation of church and state is related to freedom of religion , but the two concepts are different and one should not infer hastily that countries with a state church do not necessarily have freedom of religion, nor should one infer that a country without a state church necessarily enjoys freedom of religion. The strongest form of established church, where religious law and authority are used to set state policy, is known as a theocracy . While there are many states that permit freedom of religious belief, none allow unrestricted freedom of religious practice. Laws against bigamy, sex with children, human sacrifice, or any crime are enforced even if such practices are part of a group's religious beliefs.1
This is Wikipedia's own text, saved in our repository. Their copy of it is revision 16055251.
The opening as it stood in 2010 15 passages from the previous snapshot no longer appear
Reflecting a concept often credited in its original form to the English political philosopher John Locke , the phrase separation of church and state is generally traced to the letter written by Thomas Jefferson in 1802 to the Danbury Baptists , in which he referred to the First Amendment to the United States Constitution as creating a "wall of separation" between church and state.The phrase was quoted by the United States Supreme Court first in 1878, and then in a series of cases starting in 1947.This led to increased popular and political discussion of the concept.The concept has since been adopted in a number of countries, to varying degrees depending on the applicable legal structures and prevalent views toward the proper role of religion in society.A similar principle of laïcité has been applied in France and Turkey , while some socially secularized countries such as Norway have maintained constitutional recognition of an official state religion.The concept parallels various other international social and political ideas, including secularism , disestablishment , religious liberty , and religious pluralism .Farrar, Straus and Giroux, pg. 29 ("It took John Locke to translate the demand for liberty of conscience into a systematic argument for distinguishing the realm of government from the realm of religion.") Jefferson's Letter to the Danbury Baptists (June 1998) - Library of Congress Information Bulletin
Red text was written in or rewritten since the previous snapshot. Their copy is revision 369492262.
The opening as it stood in 2015 4 passages from the previous snapshot no longer appear
Religious persecution Traditional African religions Serers Atheism Baháʼí Faith Buddhism Christianity Christophobia post–Cold War era Catholicism Catholic Church Mormonism Jehovah's Witness Eastern Orthodox Christianity Oriental Orthodox Christianity Protestantism Falun Gong Hinduism ( Anti-Hindu sentiment ) Islam Sunni Shi'a Ahmadiyya Alevism Sufis Islamophobia Persecution of non-believers Judaism Antisemitism Anti-Judaism Religious antisemitism New religious movements Christian countercult movement Neopaganism Rastafari Zoroastrianism Religion portal v t e Power ideology Power structure Related Politics portal v t e The separation of church and state is a description for the distance in the relationship between organized religion and the nation state .It may refer to creating a secular state , with or without explicit reference to such separation, or to changing an existing relationship of church involvement in a state (disestablishment).Although the concept of separation has been adopted in a number of countries, there are varying degrees of separation depending on the applicable legal structures and prevalent views toward the proper relationship between religion and politics.While a country's policy may be to have a definite distinction in church and state, there may be an " arm's length distance " relationship in which the two entities interact as independent organizations.A similar but typically stricter principle of laïcité has been applied in France and Turkey, while some socially secularized countries such as Denmark and the United Kingdom have maintained constitutional recognition of an official state religion.The concept parallels various other international social and political ideas, including secularism , disestablishmentarianism , religious liberty , and religious pluralism .Whitman (2009) observes that in many European countries, the state has, over the centuries, taken over the social roles of the church, leading to a generally secularized public sphere.The degree of separation varies from total separation mandated by a constitution , as in India and Singapore ; to an official religion with total prohibition of the practice of any other religion, as in the Maldives .Princeton University WordNet reads: "separationism: advocacy of a policy of strict separation of church and state."
Red text was written in or rewritten since the previous snapshot. Their copy is revision 667433647.
The opening as it stood in 2020 8 passages from the previous snapshot no longer appear
Religious persecution Traditional African religions Serers Atheism Baháʼí Faith Buddhism Christianity Christophobia post–Cold War era Catholicism Catholic Church Mormonism Jehovah's Witness Eastern Orthodox Christianity Oriental Orthodox Christianity Protestantism Falun Gong Hinduism ( Anti-Hindu sentiment ) Islam Sunni Shi'a Ahmadiyya Alevism Sufis Islamophobia Persecution of non-believers Judaism Antisemitism Anti-Judaism Religious antisemitism New religious movements Christian countercult movement Neopaganism Rastafari Zoroastrianism Religion portal v t e The separation of church and state is a philosophic and jurisprudential concept for defining political distance in the relationship between religious organizations and the state . Conceptually, the term refers to the creation of a secular state (with or without legally explicit church–state separation) and to disestablishment, the changing of an existing, formal relationship between the church and the state.Although the concept is older, the exact phrase "separation of church and state" is derived from "wall of separation between church and state", a term coined by Thomas Jefferson .In a society, the degree of political separation between the church and the civil state is determined by the legal structures and prevalent legal views that define the proper relationship between organized religion and the state.The arm's length principle proposes a relationship wherein the two political entities interact as organizations each independent of the authority of the other.The strict application of the secular principle of laïcité ( secularity ) is used in France , while secular societies such as Norway , Denmark , and England maintain a form of constitutional recognition of an official state religion .The philosophy of the separation of the church from the civil state parallels the philosophies of secularism , disestablishmentarianism , religious liberty , and religious pluralism , by way of which the European states assumed some of the social roles of the church, the welfare state , a social shift that produced a culturally secular population and public sphere .In practice, church–state separation varies from total separation, mandated by the country's political constitution , as in India and Singapore , to a state religion, as in the Maldives .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 964885476.
The opening as it stood on October 6, 2023
Principle to separate religious and civil institutions "Church and state" redirects here. Religious persecution Traditional African religions Serers Atheism Baháʼí Faith Buddhism Christianity Christophobia post–Cold War era Catholicism Catholic Church Mormonism Jehovah's Witness Eastern Orthodox Christianity Oriental Orthodox Christianity Protestantism Falun Gong Hinduism ( Anti-Hindu sentiment ) Islam Sunni Shi'a Ahmadiyya Alevism Sufis Islamophobia Persecution of non-believers Judaism Antisemitism Anti-Judaism Religious antisemitism New religious movements Christian countercult movement Neopaganism Rastafari Zoroastrianism Religion portal v t e The separation of church and state is a philosophical and jurisprudential concept for defining political distance in the relationship between religious organizations and the state . Conceptually, the term refers to the creation of a secular state (with or without legally explicit church-state separation) and to disestablishment , the changing of an existing, formal relationship between the church and the state. Although the concept is older, the exact phrase "separation of church and state" is derived from "wall of separation between church and state", a term coined by Thomas Jefferson . The concept was promoted by Enlightenment philosophers such as John Locke . In a society, the degree of political separation between the church and the civil state is determined by the legal structures and prevalent legal views that define the proper relationship between organized religion and the state. The arm's length principle proposes a relationship wherein the two political entities interact as organizations each independent of the authority of the other. The strict application of the secular principle of laïcité is used in France, while secular societies such as Denmark and England maintain a form of constitutional recognition of an official state religion . The philosophy of the separation of the church from the civil state parallels the philosophies of secularism , disestablishmentarianism , religious liberty , and religious pluralism . By way of these philosophies, the European states assumed some of the social roles of the church and the welfare state , a social shift that produced a culturally secular population and public sphere . In practice, church–state separation varies from total separation, mandated by the country's political constitution , as in India and Singapore , to a state religion, as in the Maldives .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1177238150.
The opening as it stood in 2025
Principle to separate religious and civil institutions "Church and state" redirects here. Religious persecution Traditional African religions Serers Atheism Baháʼí Faith Buddhism Christianity Christophobia post–Cold War era Catholicism Catholic Church Mormonism Jehovah's Witness Eastern Orthodox Christianity Oriental Orthodox Christianity Protestantism Falun Gong Hinduism ( Anti-Hindu sentiment ) Islam Sunni Shi'a Ahmadiyya Alevism Sufis Islamophobia Persecution of non-believers Judaism Antisemitism Anti-Judaism Religious antisemitism New religious movements Christian countercult movement Neopaganism Rastafari Zoroastrianism Religion portal v t e The separation of church and state is a philosophical and jurisprudential concept for defining political distance in the relationship between religious organizations and the state . Conceptually, the term refers to the creation of a secular state (with or without legally explicit church-state separation) and to disestablishment , the changing of an existing, formal relationship between the church and the state. The concept originated among early Baptists in America.In 1644, Roger Williams , a Baptist minister and founder of the state of Rhode Island and the First Baptist Church in America , was the first public official to call for "a wall or hedge of separation" between "the wilderness of the world" and "the garden of the church." Although the concept is older, the exact phrase "separation of church and state" is derived from "wall of separation between Church & State," a term coined by Thomas Jefferson in his 1802 letter to members of the Danbury Baptist Association in the state of Connecticut. The concept was promoted by Enlightenment philosophers such as John Locke . In a society, the degree of political separation between the church and the civil state is determined by the legal structures and prevalent legal views that define the proper relationship between organized religion and the state. The arm's length principle proposes a relationship wherein the two political entities interact as organizations each independent of the authority of the other. The strict application of the secular principle of laïcité is used in France. In contrast, societies such as Denmark and England maintain the constitutional recognition of an official state church ; similarly, other countries have a policy of accommodationism , with religious symbols being present in the public square. The philosophy of the separation of the church from the civil state parallels the philosophies of secularism , disestablishmentarianism , religious liberty , and religious pluralism . By way of these philosophies, the European states assumed some of the social roles of the church in form of the welfare state , a social shift that produced a culturally secular population and public sphere . In practice, church–state separation varies from total separation, mandated by the country's political constitution , as in India and Singapore , to a state religion, as in the Maldives .
Red text was written in or rewritten since the previous snapshot. Their copy is revision 1296419153. This is our newest snapshot; the live article may have moved again since.
Today
Wikipedia's first sentence called it “concept in modern thought and practice”. Today it says “philosophical and jurisprudential concept for defining political distance in the relationship between religious”. Read the current article and compare.
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antisemitism
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Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.
What Wikipedia says this is
Every article opens by defining its subject. This one was redefined since 2005, and today's defining sentence is their current revision.
Then
concept in modern thought and practice
Now
philosophical and jurisprudential concept for defining political distance in the relationship between religious
Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.