Question: When did the first Walmart open in the state where Friendship Hall is located?

full_context: Document 1: Friendship Hall: Friendship Hall is a historic home located at East New Market, Dorchester County, Maryland. It is a Georgian-style brick dwelling. It consists of a large five-bay, two-story main block built about 1790; a two-bay one-story passage; and a -story kitchen wing. Also on the property is a tall frame smokehouse with board-and-batten siding and a steep gable roof. It is associated with the locally prominent Sulivane family, who first came to Maryland in 1695.
Document 2: 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 3: Bradford Friends Meetinghouse: Bradford Friends Meetinghouse, also known as Marshallton Meeting House, is a historic Quaker meeting house located at Marshallton in West Bradford Township, Chester County, Pennsylvania. It was built in 1764-1765, and is a one-story, stone structure with a gable roof. A porch was added to two sides of the building in the 19th century. The interior is divided into four rooms, rather than the customary two. Abraham Marshall, father of botanist Humphry Marshall was instrumental in the establishment of the meeting in the 1720s. The meeting originally met from 1722 to 1727 at the Marshall home, Derbydown Homestead, from 1722 to 1727.
Document 4: Harnden Tavern: The Col. Joshua Harnden Tavern was built during the last third of the eighteenth century in the town of Wilmington, Massachusetts. The site is on Lot No. One in the "Land of Nod," in the most northerly part of the Charlestown Grant. This imposing structure is an excellent surviving example of late-Georgian architecture. Joshua Harnden was the great-grandson of Richard Harnden, the first Englishman to settle in what is now North Wilmington. Joshua and his wife Sarah (Cornell) and their six children were the first family to occupy this house. During the Revolutionary War, Joshua served in Capt. Timothy Walker's Militia Co. Later he attained the rank of colonel shortly before his retirement. Joshua was elected to serve the Town of Wilmington as one of its three selectmen. After the Revolutionary War, he opened his home to the public as an inn or tavern. Col. Harnden died on Sept. 9, 1807. His wife died on Aug. 9, 1816. The property was sold to Dr. Silas Brown in 1818. It remained in the Brown - Hathaway family for 125 years. There is credible tradition that the tavern was used as a station on the Underground Railroad prior to the Civil War.
Document 5: 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 6: Ludwick Rudisel Tannery House: The Ludwick Rudisel Tannery House, also known as Motter Place, is a historic home located at Taneytown, Carroll County, Maryland, United States. The main block is constructed of brick on a fieldstone foundation, five bays in length, two deep, with an original slate roof, built about 1807. Attached is a two-story, two-bay-long brick kitchen. The house features Georgian massing and fine Federal detailing.
Document 7: 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 8: Amelung House and Glassworks: The Amelung House and Glassworks is a historic home located at Urbana, Frederick County, Maryland, United States. It is a two-story, late-Georgian brick home on a stone foundation built about 1785. The property once had the New Bremen glassworks built by Johann Friedrich Amelung after he came to Maryland in 1784; no above-ground remains of the factory remain. Fine examples of New Bremen glass work may be seen at the Metropolitan Museum of Art in New York City; the Corning Museum of Glass in Corning, New York; and Winterthur Museum in Winterthur, Delaware.
Document 9: 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 10: 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 11: Pomfret Plantation: Pomfret Plantation is a historic house located at Marion, Somerset County, Maryland, United States. It is a two-story, four room plan gable roofed frame house constructed between 1810 and 1830. A two-story hyphen joins an early 19th-century kitchen wing to the main block. The property also includes a post-Civil War frame tenant house, and a 19th-century Coulbourne family cemetery. The Coulbourne family and their descendants owned the property through nine continuous generations beginning with William Coulbourne in 1663, and ending with the sale of the farm in 1921.
Document 12: Gunston Hall: Gunston Hall is an 18th-century Georgian mansion near the Potomac River in Mason Neck, Virginia, USA. The house was the home of the United States Founding Father George Mason. It was located at the center of a 5,500 acre (22 km²) plantation.The home is also located not far from George Washington's home. The construction period of Gunston Hall was between 1755 and 1759.
Document 13: 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 14: 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 15: Jeptha Hayman House: The Jeptha Hayman House, also known as Hayman Farm, is a historic home located at Kingston, Somerset County, Maryland, United States. It is a two-story, five-bay weatherboard frame dwelling in the Greek Revival-style. The oldest portion is dated by an inscribed brick to 1836, with an addition about 1850. The house features a Tuscan-columned porch supported on a Rusticated concrete block knee wall.
ground_truth: 1991
sub_queries: Which state is Friendship Hall located? Answer: Maryland
when did the first walmart open in Maryland Answer: 1991