paragraph_text: Dobrich Knoll (Dobrichka Mogila \'do-brich-ka mo-'gi-la\) rises to over 400 m in the middle of Veleka Ridge, Tangra Mountains, eastern Livingston Island in Antarctica. It overlooks Tarnovo Ice Piedmont to the east and Arkutino Beach to the west. The knoll is named after the Bulgarian city of Dobrich.

paragraph_text: Feyerharm Knoll () is an ice-covered knoll on the lower northeastern slope of Mount Sidley, in the Executive Committee Range of Marie Byrd Land, Antarctica. It was surveyed by the United States Geological Survey during the Executive Committee Range Traverse of 1959, and was named by the Advisory Committee on Antarctic Names for William R. Feyerharm, a meteorologist at Byrd Station, 1960.

paragraph_text: The CBS Building in New York City, also known as Black Rock, is the headquarters of CBS Corporation. Located at 51 West 52nd Street at the corner of Sixth Avenue (Avenue of the Americas), the Eero Saarinen designed building opened in 1965. It is 38 stories and tall with approximately rentable of space. The interior and furnishings were designed by Saarinen and Florence Knoll.

paragraph_text: Kieffer Knoll () is a rocky knoll which marks the extreme northeast corner of the Queen Elizabeth Range, Antarctica. It was mapped by the United States Geological Survey from tellurometer surveys and Navy air photos, 1960–62, and was named by the Advisory Committee on Antarctic Names for Hugh H. Kieffer, a United States Antarctic Research Program glaciologist at Roosevelt Island, 1961–62.

paragraph_text: Coral Ridge Mall opened on July 29, 1998, with 100% of its floor space leased. It attracted one million visitors in its first 30 days and continues to attract roughly 10 million visitors a year. It also spawned additional retail development at the interchange of I-80 and Iowa Highway 965, now known as Coral Ridge Avenue. Big-box stores such as Kohl's, Lowe's, Dressbarn and a Wal-Mart Supercenter (currently branded as simply Walmart) have opened in the years following Coral Ridge's opening.

paragraph_text: Sam's West, Inc. (doing business as Sam's Club) is an American chain of membership-only retail warehouse clubs owned and operated by Walmart Inc., founded in 1983 and named after Walmart founder Sam Walton. , Sam's Club ranks second in sales volume among warehouse clubs with $57.839 billion in sales (in fiscal year 2019) behind rival Costco Wholesale.

paragraph_text: 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.

paragraph_text: While Novalee and Lexi are reading letters that have been sent supporting her, Novalee's mother, Mama Lil (Sally Field), who abandoned her as a child, sees her on television and appears at the hospital. Her mother, claiming the women can pool their money and get an apartment together, takes the $500 that Novalee received as a gift from the President of Walmart. Novalee also tells Mama Lil that Walmart has offered her a job in any of the Walmart stores across the country.

paragraph_text: Zemen Knoll (Zemenska Mogila \'ze-men-ska mo-'gi-la\) is a peak of 453 m in the Vidin Heights on Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica. The knoll overlooks Kaliakra Glacier to the southeast, and Saedinenie Snowfield to the northwest and west. The feature is named after the town of Zemen in Western Bulgaria.

paragraph_text: Wonderland Village is an outdoor shopping center in Livonia, Michigan, United States, a suburb of Detroit. The center is located at the southwest corner of Middlebelt Road and Plymouth Road, approximately one mile south of I-96. Walmart and Target are the complex's anchor stores.

paragraph_text: The company was founded by Chicago - born George Cohon. The first store opened in 1967 as the Western Canadian franchisee and operated with the U.S. operations. Cohon was the Eastern Canadian franchise and opened his store in 1968 on Oxford Street West in London, Ontario. In 1971, Cohon merged the two operations to one national operation. Cohon was responsible for developing the eastern Canadian franchises. The first McDonald's restaurant in Canada was opened in 1967 in Richmond, British Columbia, by western franchise owners. It was also the first McDonald's restaurant outside of the United States. As of 2014, McDonald's Canada had 1,400 stores (including Walmart Canada locations) in Canada, and more than 85,000 Canadian employees.

paragraph_text: Mefford Knoll () is a rocky knoll or ledge on the lower west slopes of the Mount Berlin massif, in the Flood Range of Marie Byrd Land, Antarctica. It was mapped by the United States Geological Survey from ground surveys and U.S. Navy air photos, 1959–66, and was named by the Advisory Committee on Antarctic Names for Michael Mefford, a member of the United States Antarctic Research Program team that studied ice sheet dynamics in the area northeast of Byrd Station, 1971–72.

paragraph_text: Ditto Knolls is a historic home and farm located near Hagerstown, Washington County, Maryland, United States. It was built about 1790, and is a five-bay, two-story brick house with a two-bay, one-story brick rear wing. It features a one-story entrance porch supported by Doric columns. Also on the property is a large stone bank barn and springhouse. It is one of two historic farm complexes located in Ditto Farm Regional Park, along with the Henry McCauley Farm.

paragraph_text: On September 14, 2006, the company announced that it would phase out its layaway program, citing declining use and increased costs. Layaway ceased on November 19, 2006, and required merchandise pickup by December 8, 2006. Walmart now focuses on other payment options, such as increased use of six - and twelve - month, zero - interest financing. The layaway location in most stores is now used for Walmart's Site - To - Store program, which was introduced in March 2007. This enables walmart.com customers to buy goods online with a free shipping option, and have goods shipped to the nearest store for pickup. Walmart continues to offer seasonal Layaway on select categories from late summer through early Christmas and year - round in their jewelry department.

paragraph_text: 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.

paragraph_text: 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).

paragraph_text: 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

paragraph_text: Lundström Knoll () is a rock knoll rising to about to the northeast of the Chevreul Cliffs in Pioneers Escarpment, Shackleton Range, Antarctica. It was photographed from the air by the U.S. Navy, 1967, and surveyed by the British Antarctic Survey, 1968–71. The knoll was named by the UK Antarctic Place-Names Committee in association with the names of pioneers of polar life and travel grouped in this area, after Johan E. Lundström, the Swedish inventor of the first true "strike-on-box safety match" in 1855.

paragraph_text: Koll Rock, also known as Blake Island is a large rock located southeast of Oom Island in the west side of Oom Bay, Mac. Robertson Land, Antarctica. It was mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936–37, and named "Kollskjer" (knoll rock).

paragraph_text: Otto's Pub & Brewery is a brewpub in State College, Pennsylvania, USA. It first opened in 2002 and has been at its current location since 2010. It is located approximately three miles from the main campus of the Pennsylvania State University.

Question: When did the first Walmart open in the state where Ditto Knolls is located?
Answer: 1991