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: 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: Tombstone Courthouse State Historic Park is a state park of Arizona in the United States. Located in Tombstone, the park preserves the original Cochise County courthouse. The two-story building, constructed in 1882 in the Victorian style, is laid out in the shape of a cross and once contained various county offices, including those of the sheriff, recorder, treasurer, and the Board of Supervisors as well as courtrooms and a jail. Inside, the courthouse contains a museum with numerous artifacts from the town's history while outside, a replica gallows has been constructed in the courtyard to mark the spot where seven men were hanged for various crimes. The park was one of the first to be designated as a state park and in 1959 was the first to open following the 1957 establishment of the Arizona State Parks Board.

paragraph_text: East Naples is an unincorporated community in Collier County, Florida, United States. East Naples has been the county seat since 1962, when the Collier County Courthouse was moved from Everglades (see Old Collier County Courthouse).

paragraph_text: The Northampton County Courthouse Historic District is a nine-acre historic district in Northampton County, Virginia, in the United States. The district is listed on the National Register of Historic Places. Three buildings are located on the property: A courthouse and a clerk's office (dating to 1731), and a prison (dating to 1814). The buildings house documents dating back to 1632. It is included in the Eastville Historic District.

paragraph_text: Garrett is an unincorporated community in northern Albany County, Wyoming, United States, along the North Laramie River. It lies along local roads north of the city of Laramie, the county seat of Albany County. Its elevation is , and it is located at . Although Garrett is unincorporated, it once had a post office, with the ZIP code of 82058. The building remains, though is no longer in use. Garrett is also home to River Bridge School, a one-room schoolhouse that is part of Albany County School District #1. Aside from the schoolhouse, the land is privately owned.

paragraph_text: The Metamora Courthouse State Historic Site is a historic American courthouse located in Metamora, Illinois, the former county seat of Woodford County. The courthouse was built in 1845 as the governmental center for Woodford County and as a circuit court for the former Illinois Eighth Circuit. The courthouse is best known for being one of only two surviving Illinois circuit courthouses where future U.S. President Abraham Lincoln practiced law.

paragraph_text: Glascock County Courthouse is a courthouse on Main Street in Gibson, Georgia, the county seat of Glascock County. The first county courthouse was built in 1858 with a donation from William Gibson, namesake of the county seat. It was removed for use as a residence when the currently used courthouse was built in 1919. The courthouse was designed by J.W. McMillian & Son. It was added to the National Register of Historic Places on September 18, 1980.

paragraph_text: The Potter County Courthouse is the primary government building of Potter County, Pennsylvania, United States. Located in the Coudersport Historic District in the Potter county seat of Coudersport, it was added the National Register of Historic Places on February 24, 1975. The courthouse is a Greek Revival structure with some Victorian elements blended into it.

paragraph_text: The Genesee County Courthouse Historic District is located at the junction of Main, West Main and Ellicott streets (New York state routes 5, 33 and 63) in downtown Batavia, New York, United States. It is a small area with the county courthouse, a war memorial and other government buildings dating from the 1840s to the 1920s. Some were originally built for private purposes.

paragraph_text: Sang Run is an unincorporated community in Garrett County, Maryland, United States. Sang Run is located along the Youghiogheny River, southwest of Accident.

paragraph_text: The Columbiana County Courthouse is located at 105 South Market Street in Lisbon, Ohio. The courthouse was added to the National Register on 1979-08-24 as part of the Lisbon Historic District.

paragraph_text: The Garrett County Courthouse is a historic county courthouse located at Oakland, Garrett County, Maryland, United States. It is a three-story, 1907-1908 neo-classical Renaissance Revival masonry structure in the form of a Latin Cross with a central rotunda and dome. The Courthouse was designed by James Riely Gordon (1863–1937), a New York architect who specialized in designing government buildings.

paragraph_text: The Monona County Courthouse, located in Onawa, Iowa, United States, was built in 1892. It was listed on the National Register of Historic Places in 1981 as a part of the County Courthouses in Iowa Thematic Resource. The courthouse is the third building the county has used for court functions and county administration.

paragraph_text: The Baxter County Courthouse is a courthouse in Mountain Home, Arkansas, United States, the county seat of Baxter County, built in 1941. It was listed on the National Register of Historic Places in 1995. The building replaced another courthouse on the same site which was deemed unsafe in 1939.

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: The Nathaniel Ropes Building is a historic commercial building in downtown Cincinnati, Ohio, United States. Located on Main Street near the Hamilton County Courthouse, this 1882 building has been named a historic site.

paragraph_text: The courthouse was used as the primary seat of government for Hudson County from its opening on September 20, 1910 until the construction of the Hudson County Administration Building in 1966. The courthouse was vacant for many years and was scheduled for demolition. The building was added to the National Register of Historic Places on August 25, 1970. Restoration began in the mid-1970s, and the building was reopened in 1985. In 1984, the Hudson County Board of Chosen Freeholders renamed the building in honor of Supreme Court Justice William J. Brennan Jr. The restoration of the courthouse was acknowledged by a Victorian Society in America Preservation Award in 1988.

paragraph_text: Scott County Courthouse is a building in Georgetown, Kentucky, the county seat of Scott County, Kentucky, where county government offices are located. The property was added to the United States National Register of Historic Places on September 28, 1972.

paragraph_text: The Benton County Courthouse is a courthouse in Bentonville, Arkansas, United States, the county seat of Benton County, built in 1928. It was listed on the National Register of Historic Places in 1988. The courthouse was built in the Classic Revival style by Albert O. Clark and anchors the east side of the Bentonville Town Square.

Question: when did the first Walmart open in the state where Garrett County Courthouse is located?
Answer: 1991