Question: When did the first Walmart open in the state where Bob Ehrlich lives?

full_context: Document 1: Mary Kane: Mary D. Kane (born March 10, 1962) is a Maryland attorney who was the Republican candidate for Lieutenant Governor in 2010, as the running mate of Bob Ehrlich. In October 2011, Kane became the President and CEO of Sister Cities International. Sister Cities International was founded by President Dwight D. Eisenhower in 1956. Sister Cities International is a 501(c)(3) nonprofit, nonpartisan membership organization for individual sister cities, counties, and states across the United States. Membership consists of 550 US cities, counties and states that have over 2000 partnerships in over 140 countries on 6 continents. Kane also sits on the board of Suburban Hospital, a member of Johns Hopkins Medicine. and Mount Saint Mary's University.
Document 2: History of Walmart: In April 1983, the company opened its first Sam's Club store, a membership - based discount warehouse club, in Midwest City, Oklahoma. They also expanded into Indiana, Iowa, New Mexico, and North Carolina and implemented ``people greeters ''in all of their stores. The first stores opened in Virginia in 1984.
Document 3: Kathleen Sebelius: Kathleen Sebelius (; "née" Gilligan; born May 15, 1948) is an American businesswoman and politician who served as the 21st United States Secretary of Health and Human Services from 2009 until 2014. Previously, she was the 44th Governor of Kansas from 2003 to 2009, the second woman to hold that office. She is a member of the Democratic Party. Sebelius was the Democratic respondent to the 2008 State of the Union address and is chair-emerita of the Democratic Governors Association (she was its first female chair). On April 10, 2014, Sebelius announced her resignation as Secretary of Health and Human Services. She is CEO of Sebelius Resources LLC.
Document 4: Sam's Club: As of January 31, 2018, Sam's Club operates 597 membership warehouse clubs in 44 U.S. states. Alaska, Massachusetts, Oregon, Rhode Island, Vermont, and Washington are the only states where Sam's Club does not operate, as is the case for the District of Columbia. Walmart International also operates Sam's Clubs in Mexico, Brazil, and China. It has 162 locations in Mexico, 27 locations in Brazil, and 19 in China. Locations generally range in size from 94,000 -- 161,000 sq ft (8,700 -- 15,000 m), with an average club size of approximately 134,000 sq ft (12,400 m).
Document 5: Eugene Kang: Eugene Kang is an Ann Arbor native who attended Greenhills School before enrolling at the University of Michigan. At Michigan, Kang made a 2005 bid for the Ann Arbor City Council. He later worked on Senator Amy Klobuchar's (D-Minn.) 2006 campaign. During Obama's Presidential campaign he worked in the political division. A second-generation Korean American, he was also a part of the Asian Americans and Pacific Islanders National Leadership Council.
Document 6: Robert B. McKeon: McKeon supported his alma maters, including Albertus Magnus High School, and served on the board of trustees at Fordham University. In 2005, he established The Robert B. McKeon Fellowship Fund for Military Personnel at Harvard University. He was a member of the Council on Foreign Relations, where he endowed in perpetuity in 2007, The Robert B. McKeon Endowment Series on Military Strategy and Leadership. Mr. McKeon was appointed by the Governor of Connecticut to serve as Chairman of the state's Health and Educational Facilities Authority, a public authority that finances hospitals and universities in Connecticut. He and his wife, Clare Smith McKeon, an Oxford graduate who worked at Christies, were avid art collectors.
Document 7: History of Walmart: By 1988, Walmart was operating in 27 states, having expanded into Arizona, Michigan, Ohio, West Virginia, New Jersey, and Wyoming. By 1990, they expanded into California (which marked Walmart officially becoming a fully nationwide retailer), Nevada, North Dakota, Pennsylvania, South Dakota, and Utah. The Walmart Visitor's Center also opened this year on the site of Sam Walton's original store.
Document 8: History of Walmart: By 1977, Wal - Mart expanded into Illinois and made its first corporate acquisition, assuming ownership and operation of the Mohr - Value stores, which operated in Missouri and Illinois. This was followed by the acquisition of the Hutcheson Shoe Company in 1978. In the same year Walmart also branched out into several new markets, launching its pharmacy, auto service center, and jewelry divisions.
Document 9: Walmart: Walmart Inc. Walmart's current logo since 2008 Walmart's official headquarters in Bentonville, Arkansas Formerly called Wal - Mart, Inc. (1969 -- 70) Wal - Mart Stores, Inc. (1970 -- 2018) Type Public Traded as NYSE: WMT DJIA component S&P 100 component S&P 500 component ISIN US9311421039 Industry Retail Founded July 2, 1962; 55 years ago (1962 - 07 - 02) Rogers, Arkansas, U.S. Founder Sam Walton Headquarters Bentonville, Arkansas, United States Number of locations 11,718 stores worldwide (January 31, 2018) Area served Worldwide Key people Greg Penner (Chairman) Doug McMillon (President & CEO) Products Electronics Movies and music Home and furniture Home improvement Clothing Footwear Jewelry Toys Health and beauty Pet supplies Sporting goods and fitness Auto Photo finishing Craft supplies Party supplies Grocery Services Walmart - 2 - Walmart Walmart MoneyCard Pickup Today Walmart.com Walmart Pay Revenue US $500.34 billion (2018) Operating income US $20.437 billion (2018) Net income US $9.862 billion (2018) Total assets US $204.52 billion (2018) Total equity US $77.869 billion (2018) Owner Walton family (51%) Number of employees 2.3 million, Worldwide (2017) 1.4 million, U.S. (2017) Divisions Walmart U.S. Walmart International Sam's Club Global eCommerce Subsidiaries Walmart Canada Walmart Mexico Walmart Chile Walmart de México y Centroamérica @ WalmartLabs Walmart Neighborhood Market Asda Amigo Supermarkets Vudu Massmart Seiyu Group Bompreço Líder Jet.com Hayneedle Moosejaw ModCloth Flipkart Website Corporate website Commercial website Footnotes / references
Document 10: History of Walmart: In 1981, Wal - Mart expanded into the southeastern US market, opening stores in Georgia and South Carolina, and acquiring 92 Kuhn's Big K stores. They expanded into Florida and Nebraska in 1982.
Document 11: Kathmandu: Kathmandu Metropolitan City (KMC), in order to promote international relations has established an International Relations Secretariat (IRC). KMC's first international relationship was established in 1975 with the city of Eugene, Oregon, United States. This activity has been further enhanced by establishing formal relationships with 8 other cities: Motsumoto City of Japan, Rochester of the USA, Yangon (formerly Rangoon) of Myanmar, Xi'an of the People's Republic of China, Minsk of Belarus, and Pyongyang of the Democratic Republic of Korea. KMC's constant endeavor is to enhance its interaction with SAARC countries, other International agencies and many other major cities of the world to achieve better urban management and developmental programs for Kathmandu.
Document 12: Kay Khan: Kay Khan is an American state legislator serving in the Massachusetts House of Representatives. She has represented Newton in the Massachusetts House of Representatives since 1995. She was originally appointed by Speaker Robert DeLeo in 2009 to serve as the House Chair of the Joint Committee on Children, Families, and Persons with Disabilities, and has served in this capacity ever since.
Document 13: Marie Atkins: Marie Atkins was mayor of the Kingston and Saint Andrew Corporation (KSAC) from 1989 to 2003. Atkins was the third female mayor for Kingston & St. Andrew, Jamaica, and is the longest-serving mayor to date for Kingston & St. Andrew. She is the first Jamaican to become the president of the World Conference of Mayors.
Document 14: History of Walmart: In 1991, the company expanded into Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, and New York. Walmart expanded worldwide this year, with the opening of their first store outside the United States in Mexico City. They also acquired Western Merchandisers, Inc. of Amarillo, Texas. 1991 also saw the launch of the Sam's American Choice brand of products.
Document 15: Maureen Reed: Maureen Reed (born April 10, 1953) is a physician who was the chair of the Board of Regents of the University of Minnesota, Director of the Parks and Trails Council of Minnesota, Medical Director and Vice-President of the not-for-profit health care provider HealthPartners, and Executive Director of the Nobel Peace Prize Forum. She ran as a Democrat in the sixth congressional district of Minnesota in 2010.
ground_truth: 1991
sub_queries: Bob Ehrlich >> residence Answer: Maryland
when did the first walmart open in Maryland Answer: 1991