Impossible Cities: A Utopian Experiment is multidisciplinary play inspired by Italo Calvino's "Invisible Cities" and which deals with the fates of four different utopian communities in the United States.
 The play was staged by Walkabout Theater and premiered at Peter Jones Gallery.
 It grew out of a solo show by Seth Bockley, who also performs in the longer show.
Transcendentalism is a philosophical movement that developed in the late 1820s and 1830s in the eastern United States.
 It arose as a reaction to or protest against the general state of intellectualism and spirituality at the time.
 The doctrine of the Unitarian church as taught at Harvard Divinity School was of particular interest.
This is a chronology of Mormonism.
 In the late 1820s, founder Joseph Smith, founder of the Latter Day Saint movement, announced that an angel had given him a set of golden plates engraved with a chronicle of ancient American peoples, which he had a unique gift to translate.
 In 1830, he published the resulting narratives as the Book of Mormon and founded the Church of Christ in western New York, claiming it to be a restoration of early Christianity.
Wilhelm Waiblinger (   ; 21 November 1804 – 17 or 30 January 1830) was a German romantic poet, mostly remembered today in connection with Friedrich Hölderlin.
 After he had attended Gymnasium Illustre in Stuttgart, he was a student at the seminary of Tübingen in the 1820s, when Hölderlin, already mentally ill, lived there as a recluse in a carpenter's house.
 Waiblinger, who used to visit the older poet and take him out for walks, left an account of Hölderlin's life then, "Hölderlins Leben, Dichtung und Wahnsinn" ("Hölderlin's life, poetry and madness").
 In the late 1820s, Waiblinger left Tübingen for Italy, dying at the age of 25 in Rome, where he is buried in the Protestant Cemetery.
Katsukawa Shunsen (勝川 春扇 ) , who is also known as Shunkō II, was a designer of books and ukiyo-e style Japanese woodblock prints.
 He was born in 1762 and designed prints from about 1805 to about 1821.
 He initially studied with the Rimpa school artist Tsutsumi Tōrin III.
 In 1806 or 1807, Shunsen became a student of Katsukawa Shun'ei, and changed his name from “Kojimachi Shunsen” to “Katsukawa Shunsen”.
 In 1820 he succeeded Katsukawa Shunkō I, becoming Katsukawa Shunkō II.
 In the late 1820s, he ceased producing woodblock prints and devoted himself to painting ceramics.
 He died about 1830.
In dance, the galop, named after the fastest running gait of a horse (see gallop), a shortened version of the original term galoppade, is a lively country dance, introduced in the late 1820s to Parisian society by the Duchesse de Berry and popular in Vienna, Berlin and London.
 In the same closed position familiar in the waltz, the step combined a "glissade" with a "chassé" on alternate feet, ordinarily in a fast time.
 The "galop" was a forerunner of the polka, which was introduced in Prague ballrooms in the 1830s and made fashionable in Paris when Raab, a dancing teacher of Prague, danced the polka at the Odéon Theatre, 1840.
 In Australian bush dance, the dance is often called galopede.
 An even more lively, faster version of the galop called the can-can developed in Paris around 1830.
The Anti-Masonic Party (also known as the Anti-Masonic Movement) was the first "third party" in the United States.
 It strongly opposed Freemasonry as a single-issue party, and later aspired to become a major party by expanding its platform to take positions on other issues.
 After emerging as a political force in the late 1820s, most of the Anti-Masonic Party's members joined the Whig Party in the 1830s, and the party disappeared after 1838.
Brook Farm, also called the Brook Farm Institute of Agriculture and Education or the Brook Farm Association for Industry and Education, was a utopian experiment in communal living in the United States in the 1840s.
 It was founded by former Unitarian minister George Ripley and his wife Sophia Ripley at the Ellis Farm in West Roxbury, Massachusetts (9 miles outside of downtown Boston) in 1841 and was inspired in part by the ideals of Transcendentalism, a religious and cultural philosophy based in New England.
 Founded as a joint stock company, it promised its participants a portion of the profits from the farm in exchange for performing an equal share of the work.
 Brook Farmers believed that by sharing the workload, ample time would be available for leisure activities and intellectual pursuits.
The Wayne Sentinel was a weekly newspaper published in Palmyra, New York beginning in 1823, and continuing at least until 1863.
 In the late 1820s, the newspaper was one of the first media sources to report on the spiritual claims that were made by Joseph Smith, founder of the Latter Day Saint movement.
 On 26 June 1829, the "Sentinel" reported on local rumors of a "Golden Bible" and reproduced the text of the title page of the Book of Mormon, which was not published until March 1830.
 The "Wayne Sentinel" and the Book of Mormon were published in Palmyra by E. B. Grandin.
The Latter Day Saint movement (also called the LDS movement, LDS restorationist movement, or Smith–Rigdon movement) is the collection of independent church groups that trace their origins to a Christian primitivist movement founded by Joseph Smith in the late 1820s.
 Collectively, these churches have over 15 million members.
 The vast majority of adherents belong to The Church of Jesus Christ of Latter-day Saints (LDS Church), with their predominant theology being Mormonism.
 The LDS Church self-identifies as Christian.
 A minority of Latter Day Saint adherents, such as members of the Community of Christ, believe in traditional Protestant theology, and have distanced themselves from some of the distinctive doctrines of Mormonism.
 Other groups include the Remnant Church of Jesus Christ of Latter Day Saints, which supports lineal succession of leadership from Smith's descendants, and the more controversial Fundamentalist Church of Jesus Christ of Latter-Day Saints, which defends the practice of polygamy.

Question: Who founded a utopian experiment which was inspired by the ideals of a philosophical movement developed in the late 1820s and 1830s?
Answer: George Ripley