Background: Robert Owen (; 14 May 1771 - 17 November 1858) was a Welsh textile manufacturer, philanthropic social reformer, and one of the founders of utopian socialism and the cooperative movement. Owen is best known for his efforts to improve the working conditions of his factory workers and his promotion of experimental socialistic communities.
Context: Although Owen made brief visits to the United States, London became his permanent home and the centre of his activities in 1828. After an extended period of friction with William Allen and some of his other business partners, Owen relinquished all of connections to New Lanark. He is often quoted as comment Allen at the time, "All the world is queer save thee and me, and even thou art a little queer". Having invested most of his personal fortune in the failed New Harmony communal experiment, Owen was no longer a wealthy capitalist; however, he remained the head of a vigorous propaganda effort to promote industrial equality, free education for children, and adequate living conditions in factory towns. In addition, he delivered lectures in Europe and published a weekly newspaper to gain support for his ideas.  In 1832 Owen opened the National Equitable Labour Exchange system, a time-based currency in which the exchange of goods was effected by means of labour notes; this system superseded the usual means of exchange and middlemen. The London exchange continued until 1833; a Birmingham branch operated for only a few months until July 1833. Owen also became involved in trade unionism. He briefly served as the leader of the Grand National Consolidated Trade Union (GNCTU) before its collapse in 1834.  Socialism first became current in British terminology in the discussions of the Association of all Classes of all Nations, which Owen formed in 1835 and served as its initial leader. Owen's secular views also gained enough influence among the working classes to cause the Westminster Review to comment in 1839 that his principles were the actual creed of a great portion of them. However, by 1846, the only long-lasting result of Owen's agitation for social change, carried on through public meetings, pamphlets, periodicals, and occasional treatises, remained the co-operative movement, and for a time even that seemed to have utterly collapsed.
Question: what did the exchange system do
Answer: a time-based currency in which the exchange of goods was effected by means of labour notes;

Problem: Background: DeVito was born in Neptune Township, New Jersey, the son of Daniel DeVito, Sr., a small business owner, and Julia DeVito (nee Moccello). He grew up in a family of five, with his parents and two older sisters. He is of Italian descent; his family is originally from San Fele, Basilicata. He was raised in Asbury Park, New Jersey.
Context: DeVito played Martini in the 1975 film One Flew Over the Cuckoo's Nest, reprising his role from the 1971 off-Broadway play of the same title. He gained fame in 1978 playing Louie De Palma, the short but domineering dispatcher for the fictional Sunshine Cab Company, on the hit TV show Taxi. After Taxi ended, DeVito began a successful film career, starting with roles in 1983's Terms of Endearment, as the comic rogue in the romantic adventure Romancing the Stone, starring Michael Douglas and Kathleen Turner, and its 1985 sequel, The Jewel of the Nile. In 1986, DeVito starred in Ruthless People with Bette Midler and Judge Reinhold, and in 1987, he made his feature-directing debut with the dark comedy Throw Momma from the Train, in which he starred with Billy Crystal and Anne Ramsey. Two years later, DeVito reunited with Douglas and Turner in The War of the Roses, which he directed and in which he co-starred.  DeVito's work during this time includes Other People's Money with Gregory Peck, director Barry Levinson's Tin Men as a competitive rival salesman to Richard Dreyfuss' character, two co-starring vehicles with Arnold Schwarzenegger (the comedies Twins and Junior), and playing The Penguin as a deformed sociopath in director Tim Burton's Batman Returns (1992) as well in the 1996 film adaptation Matilda in which he played the villainous car dealer and Matilda's father Harry Wormwood.  Although generally a comic actor, DeVito expanded into dramatic roles with The Rainmaker (1997), Hoffa (1992), which he directed and in which he co-starred with Jack Nicholson, Jack the Bear (1993), L.A. Confidential, The Big Kahuna, and Heist (2001), as a gangster nemesis of Joe Moore (Gene Hackman).  DeVito has an interest in documentaries: In 2006, he began a partnership with Morgan Freeman's company ClickStar, on which he hosts a documentary channel called Jersey Docs. He was also interviewed in the documentary Revenge of the Electric Car, about his interest in and ownership of electric vehicles.
Question: When did DeVito start acting?
Answer:
DeVito played Martini in the 1975 film One Flew Over the Cuckoo's Nest, reprising his role from the 1971 off-Broadway play of the same title.