Question: When was the company that acquired Cogar Corporation founded?

Context paragraphs:
Union Sulphur Company: The Union Sulphur Company was an American sulfur mining corporation founded in 1896 by the famous inventor Herman Frasch.  It utilized the Frasch Process to extract previously inaccessible sulfur deposits located beneath swampland in Louisiana.  The Union Sulphur Company dominated the world sulfur market until its patents expired in 1908.  Its success led to the development of the present-day city of Sulphur, Louisiana.  After its sulfur patents expired, the company transitioned into oil and natural gas production and was renamed the Union Sulphur & Oil Company and later the Union Oil & Gas Corporation.

Singer Corporation: Singer Corporation is an American manufacturer of sewing machines, first established as I. M. Singer & Co. in 1851 by Isaac Merritt Singer with New York lawyer Edward Clark.  Best known for its sewing machines, it was renamed Singer Manufacturing Company in 1865, then The Singer Company in 1963.  It is based in La Vergne, Tennessee near Nashville.  Its first large factory for mass production was built in Elizabeth, New Jersey in 1863.

System Planning Corporation: System Planning Corporation (SPC) is a Virginia based corporation founded in 1970 that produces military electronics, such as radar, and Systems Engineering and Technical Assistance in airwarfare, cybersecurity, program management and research of advanced weapons systems, advanced space systems and advanced microsystems for the United States Department of Defense (DoD).  SPC was acquired by ECS Federal, LLC in 2015.  It is principal support contractor to cabinet-level departments, including the Department of Defense, Justice and State, and Homeland Security.

George Cogar: George R. Cogar (born 1932) was the head of the UNIVAC 1004 electronic design team code named the "bumblebee project", and later the "barn project", and co-founder of Mohawk Data Sciences Corporation, a Herkimer, N. Y.-based multimillion-dollar business built largely on his invention of the Data Recorder magnetic tape encoder, which was introduced in 1965 and eliminated the need for keypunches and punched cards by direct encoding on tape.  He also founded the Cogar Corporation, where he built an intelligent terminal—an early forerunner of the modern personal computer—which he called the Cogar System 4 or Cogar 4.  The Cogar 4 became the Singer 1500 after Singer Business Machines acquired Cogar Corporation.  In 1976 International Computers Limited (ICL) acquired Singer Business Machines, changing the name of the computer to the ICL 1500.

DigiCash: DigiCash Inc. was an electronic money corporation founded by David Hussein in 1989.  DigiCash transactions were unique in that they were anonymous due to a number of cryptographic protocols developed by its founder.  DigiCash declared bankruptcy in 1998, and subsequently sold its assets to eCash Technologies, another digital currency company, which was acquired by InfoSpace on Feb. 19, 2002.

Sindh Engro Coal Mining Company: Sindh Engro Coal Mining Company (SECMC) is a joint venture corporation between the Government of Sindh and Engro Corporation founded in 2009 tasked to mine and establish power projects from the Block II of the Thar coalfield.  Government of Sindh owns 51% of the company.

World Finance Corporation: World Finance Corporation (abbreviated WFC; it was later renamed simply WFC Corp.) was a financial corporation founded in 1971 and headquartered in Coral Gables Florida.  When WFC Corp was headed and controlled by Guillermo Hernandez-Cartaya (a former Cuban banker who was an agent of the CIA, and believed to be an agent of the Mafia, and also of various Colombian drug lords) through the WFC Group shell company, it became known for a major financial scandal in which over $50 million was lost.  This scandal was the subject of a 60 Minutes segment on 26 February 1978.  Cartaya controlled it through a number of shell companies, the most well known of which was the WFC Group.

American Competitiveness Institute: The American Competitiveness Institute now known as ACI Technologies Inc. (ACI) is an American scientific research corporation founded by Alan J. Criswell in 1992.  Located in Philadelphia, Pennsylvania, ACI operates a 10000 sqft facility dedicated to the advancement of the electronics industry and research and development of various electronic manufacturing methods and materials.  Early in its existence, ACI acquired a defense contract from the Office of Naval Research known as the Electronics Manufacturing Productivity Facility (EMPF).

Omaisuudenhoitoyhtiö Arsenal: Omaisuudenhoitoyhtiö Arsenal Oy ("Asset Management Corporation Arsenal") is a corporation founded by the Government of Finland for management of assets.  Arsenal was founded after the early 1990s recession in 1993 as a response to the nationalization of failed banks, mainly Säästöpankki and STS Bank.  (The contribution of the Säästöpankki group to the total damages to the government was 96%.)  The defaulted debts led to a large amount property being passed to the government as collateral, with concomitant bankruptcy court cases where the state had an interest.  In 1994, Arsenal held 4.822 million euros of assets and had 12.684 customers.  In 1999, the business managing the real estate collateral was spun off as Kapiteeli Oyj, which was bought by Sponda in 2006.  (Sponda was also founded as a result of the same crisis around real estate and stocks from the collapsed SKOP Bank, but since 2012 has had no government ownership.)  Most of the remaining collateral was sold between 2000 and 2003.  In 2003, Arsenal voluntarily started liquidation proceedings.  As of May 2013, Arsenal had 121 debtors and 28 court cases ongoing, and kept four employees.

Coromandel International: Coromandel International Limited is an Indian corporation founded in the early 1960s by IMC and Chevron Companies of USA.  Originally named Coromandel Fertilisers, the company is in the business of fertilizers, pesticides and specialty nutrients.  The company is also in rural retail business in the state of Andhra Pradesh through its Mana Gromor Centres.  Coromandel International is a subsidiary of both the Murugappa Group and EID Parry, which holds 62.82% of the equity in the company.  The company has eight manufacturing units located in the states of Andhra Pradesh, Tamil Nadu, Maharashtra, Gujarat and Jammu and Kashmir.  Its product line includes Gromor, Godavari, Paramfos, Parry Gold and Parry Super.  The company produces and sells phosphatic fertilisers of various grades, including Diammonium phosphate and Single Super Phosphate.

Supporting paragraphs: George Cogar Singer Corporation
Answer: 1851