Restorationism

Restorationism is a form of ecclesial Christianity that developed out of 19th century Protestantism, as a rejection of a perceived loss of centralised power due to the Protestant Reformation. Advocates of Restorationism rejected denominational divisions, early Christian creeds, and traditions they interpreted as corruption, instead seeking to return to a purer, more primitive faith. Restorationist denominations often claim to be the one true church in a similar way to medieval Catholicism.

Some restorationist churches are less radical and follow orthodox Christian doctrines such as trinitarianism. Examples include the Seventh Day Adventist church and the Primitive Baptists. The vast majority however, would broadly claim these orthodoxies are pagan additions, instead siding with long disproved heresies. Examples include the Jehovah's Witnesses, who teach Arianism and the Mormon church, which teaches Tritheism.

Restorationism is sometimes considered a form of Protestantism, but is also sometimes grouped as a separate category of denominations.

Restorationist Organisations and movements

Organisation	Theology name	Started in	Trinitarian?
LDS Church, FLDS Church	Mormonism	1820
Seventh-day Adventist Church	Seventh-day Adventism	1863	Yes
Worldwide Church of God	Armstrongism	1934	No
Westboro Baptist Church	Primitive Baptism	1820s	Yes
New Church	Swedenborgianism	1744	No
Iglesia ni Cristo	N/A	1914	No
La Luz del Mundo	N/A	1926	No
Jehovah's Witnesses	N/A	1870	No
Plymouth Brethren	N/A	1825	No
Family of Love	N/A	1968	No
Eastern Lightning	N/A	1991	Yes
Millerites	N/A	1831	Yes
Various	Oneness Pentecostalism	1910s	No
Various	Nondenominational Christianity	N/A	Usually