Question: Howard Johnson inspired the creation of the TVA Credit Union Ballpark in what year?

Context paragraphs:
Howard Johnson's: Howard Johnson's, or Howard Johnson, is an American chain of hotels, motels and restaurants located primarily throughout the United States and Canada.  Founded by Howard Johnson, it was the largest restaurant chain in the U.S. throughout the 1960s and 1970s, with more than 1,000 combined company-owned and franchised outlets.

Johnson City Cardinals: The Johnson City Cardinals are a Minor League Baseball team based in Johnson City, Tennessee.  The Cardinals are affiliated with the St. Louis Cardinals organization and play with the Rookie Appalachian League.  The team has won nine league championships, most recently in 2016.  They play their home games at TVA Credit Union Ballpark.

Federal Credit Union Act: The Federal Credit Union Act is an Act of Congress enacted in 1934.  The purpose of the law was to make credit available and promote thrift through a national system of nonprofit, cooperative credit unions.  This Act established the federal credit union system and created the Bureau of Federal Credit Unions, the predecessor to the National Credit Union Administration, to charter and oversee federal credit unions.  The general provisions in the Federal Act were based on the Massachusetts Credit Union Act of 1909, and became the basis of many other state credit union laws.  Under the provisions of the Federal Credit Union Act, a credit union may be chartered under either federal or state law, a system known as dual chartering, which is still in existence today.

Firstmark Credit Union: Firstmark Credit Union (formerly San Antonio Teachers Credit Union) is a federally insured, state-chartered, member-owned, not-for-profit financial cooperative.  The credit union was founded by educators in 1932, and changed its name to Firstmark Credit Union in October 2002.  Serving over 100,000 members and managing assets of more than US$1 billion, the Credit Union is the fourth largest in San Antonio, Texas’.  With sixteen financial centers(including the acquisition of Southside Credit Union and St. Joseph's Credit Union), the Credit Union offers a full range of financial products and services, both personal and commercial.  Firstmark Credit Union is community-chartered.  Membership is open to anyone who lives, works, worships, attends school in Bexar County.  Educators, students and their families, in the following 12 surrounding counties are also eligible: Atascosa, Bandera, Comal, Dimmit, Frio, Guadalupe, Kendall, La Salle, McMullen, Medina, Wilson, and Zavala.

Lake Trust Credit Union: Lake Trust Credit Union is a community-based credit union headquartered in Brighton, Michigan.  It is a not-for-profit financial cooperative owned by members of the credit union and regulated under the authority of the National Credit Union Administration (NCUA).  The organization is governed and supervised by an 18-member board of directors.  The earliest predecessor of Lake Trust Credit Union was Detroit Edison Credit Union, which was chartered in 1944.  In 2010, Detroit Edison merged with NuUnion Credit Union to establish Lake Trust Credit Union.

PrimeWay Federal Credit Union: PrimeWay Federal Credit Union is a federally insured, state-chartered, member-owned, not-for-profit financial cooperative.  The credit union was organized in April 1937 as Houston Telephone Federal Credit Union to serve the employees of Southwestern Bell in the Houston area.  In April 2003, the name was officially changed to PrimeWay Federal Credit Union.  The name change was prompted by credit union growth and diversification of membership.  In 2004, PrimeWay Federal Credit Union was granted a community charter under the National Credit Union Administration (NCUA).  PrimeWay Federal Credit Union serves over 48,000 members and manages assets of more than $429 million.  PrimeWay Federal Credit Union operates 9 locations in the Houston area with more than 3,500 Shared Service Centers available to serve its members.

TVA Credit Union Ballpark: TVA Credit Union Ballpark is a stadium in Johnson City, Tennessee.  It is primarily used for baseball, and is the home field of the Johnson City Cardinals minor league baseball team of the Appalachian League.  The field is named "Howard Johnson Field", after the Howard Johnson's hotel chain.  It was built in 1956 and holds 3,800 people.

Great Wisconsin Credit Union: Great Wisconsin Credit Union, formerly known as CUNA Credit Union until 2005, was a credit union that was founded on September 17, 1935 in Madison, Wisconsin.  The credit union had been started to serve employees of the CUNA Mutual Group and the local community.  By 2007, Great Wisconsin Credit Union had approximately 46,000 members and 428 million dollars in assets.  As of 2008, the credit union had a total of nine locations throughout Wisconsin.  The credit union became defunct in 2008, after a merger with Summit Credit Union.

Lake Michigan Credit Union: Lake Michigan Credit Union, founded in 1933, is a credit union based in Grand Rapids, Michigan.  As of 2011, Lake Michigan Credit Union has 36 locations throughout the state of Michigan.  The credit union currently has approximately 305,000 members and US$3.6 billion in assets, making Lake Michigan the second largest credit union in the state of Michigan and the largest financial institution based in Western Michigan.  As the organization is a federally insured state-chartered credit union, Lake Michigan Credit Union is regulated by the National Credit Union Administration (NCUA).  Lake Michigan Credit Union was officially chartered in 1933 and was assigned NCUA charter number 62514.

Call Federal Credit Union: Call Federal Credit Union is a federally insured, not-for-profit financial cooperative headquartered in Richmond, Virginia.  It is regulated under the authority of the National Credit Union Administration (NCUA) of the U.S. federal government.  Call Federal Credit Union is the second-largest Richmond-based credit union.  As of December 31, 2011, Call Federal Credit Union had $350 million USD in assets and 31,000 members.  In accordance with the Federal Credit Union Act of 1934, Call Federal Credit Union is a tax-exempt, federally chartered, federally insured, not-for-profit financial cooperative.  Call Federal Credit Union accounts are insured up to $250,000 through the NCUA, which is comparable to the insurance provided to accounts at traditional banks via the Federal Deposit Insurance Corporation.

Supporting paragraphs: TVA Credit Union Ballpark Howard Johnson's
Answer: 1956