Question: Before what year was there no Walmart sharing the state with Bankard-Gunther Mansion?

full_context: Document 1: Eutaw Place Temple: Eutaw Place Temple is a large, eclectically-styled former synagogue on Eutaw Place in the Bolton Hill neighborhood of Baltimore, Maryland. The temple was constructed to serve the German Jewish immigrant community. Originally built as a synagogue for the Temple Oheb Shalom congregation, the property was sold to the Prince Hall Masons in 1960. It was built in 1892 as the second home of the Oheb Shalom congregation, and borrows design elements from the Great Synagogue of Florence. The architect was Joseph Evans Sperry of Baltimore.
Document 2: 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 3: 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 4: 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 5: Leadenhall Street Baptist Church: Leadenhall Street Baptist Church is a historic located at Baltimore, Maryland, United States. It is a gable-front rectangular brick temple with simple Renaissance Revival detail. The original exterior wall surfaces have been covered with formstone on the main façade and stucco elsewhere. It features round-arched stained glass windows on each side bay. It was built in 1873, by Joseph Thomas & Son for the city's African American Baptists who were then centered in the old southwest area from the downtown business district of Baltimore in the "Sharp-Leadenhall" (named for the intersecting nearby streets) community in the old "South Baltimore" area. Nearby is its now famed revitalized "Inner Harbor" area of the old "Basin" for the harbor port.
Document 6: Old Town Savings Bank: Old Town Savings Bank, also known as Cala Brothers, is a historic loft building located at Baltimore, Maryland, United States. It is a three-story loft structure designed by architect Frank E. Davis (1839-1921) and constructed in 1871. Both the street façades are cast iron, four bays wide on Gay Street and eight bays wide on Exeter Street. It is a Full Cast Iron Front building. It operated as a bank until about 1940, then housed a wholesale distributor of tobacco and confectionery.
Document 7: South Carolina National Bank of Charleston: One of the most important buildings on South Carolina's oldest commercial street, the South Carolina National Bank building was built in 1817 as the Office of Discount and Deposit of the Second Bank of the United States. The bank was the only bank equipped to provide international banking services, which enabled the transfer of South Carolina rice and cotton to European markets. President Andrew Jackson later withdrew all government deposits, thereby destroying the bank. In 1836, when the Office of Discount and Deposit was liquidated, the Bank of Charleston purchased the building.
Document 8: 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 9: Bankard-Gunther Mansion: Bankard-Gunther Mansion is a historic home located at Baltimore, Maryland, United States. It is a three-story, three bay wide, nine bay deep, flat roofed brick building built in 1866. It is a richly embellished Italianate style building built originally for Jacob J. Bankard, one of many enterprising and prominent butchers who flocked to "Butcher’s Hill", and later George Gunther, who established the Gunther Brewing Company in Baltimore. In 1919 the building became an important Baltimore charitable center to be used by the Hebrew Home for Incurables and the Emmanuel Center to provide humanitarian service to the community.
Document 10: Baltimore General Dispensary: Baltimore General Dispensary is a historic public dispensary building located at Baltimore, Maryland, United States. It is three bays wide and two stories high, with running bond red brick foundation and building walls, and a water table constricted in 1911. The front features a simple cornice surmounting a stone entablature reading: 1801 Baltimore General Dispensary 1911. It is the only surviving building designed for Baltimore's oldest charity. The interior originally featured a large dispensary center on the first floor, separated for black and white patients. The rooms for surgical and medical aid on the second floor gave the poor a measure of privacy rarely available to charity patients.
Document 11: Walmart: Walmart U.S. is the company's largest division, accounting for US $298.38 billion, or 62.3 percent of total sales, for fiscal 2016. It consists of three retail formats that have become commonplace in the United States: Supercenters, Discount Stores, Neighborhood Markets, and other small formats. The discount stores sell a variety of mostly non-grocery products, though emphasis has now shifted towards supercenters, which include more groceries. As of January 31, 2018, there are a total of 4,761 Walmart U.S. stores.
Document 12: 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 13: Madison Historic District (Madison, Indiana): Many of the prominent buildings in the district were built by Madison-native-architect Francis Costigan, who favored the Greek Revival style. Two of these are National Historic Landmarks: the Lanier Mansion, and the Charles L. Shrewsbury House. The Lanier Mansion was the former home of James Lanier, who lent money to governor Oliver P. Morton to run the Indiana state government to circumvent the legislative process between 1862-1865. The Shrewsbury-Windle House was built for steamboat captain Charles Shrewsbury, who would later become a mayor of Madison. Costigan, himself, built his home in the district, and it is considered one of the best uses of a narrow lot by modern architects. A thirty-foot parlor is considered the highlight of the House.
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: 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
ground_truth: 1991
sub_queries: What is the name of the state where Bankard-Gunther Mansion is located? Answer: Maryland
when did the first walmart open in Maryland Answer: 1991