paragraph_text: Opařany is a municipality that is situated in the South Bohemian Region of the Czech Republic, with a 2007 estimated population of 1392. It is located about 15 kilometers from Tábor, its administrative district, and approximately 90 kilometers from the capital Prague and is 464 meters above sea level. The current mayor is Mgr. Blanka Řezáčová.

paragraph_text: The rural Plains have lost a third of their population since 1920. Several hundred thousand square miles (several hundred thousand square kilometers) of the Great Plains have fewer than 6 inhabitants per square mile (2.3 inhabitants per square kilometer)—the density standard Frederick Jackson Turner used to declare the American frontier "closed" in 1893. Many have fewer than 2 inhabitants per square mile (0.77 inhabitants per square kilometer). There are more than 6,000 ghost towns in the state of Kansas alone, according to Kansas historian Daniel Fitzgerald. This problem is often exacerbated by the consolidation of farms and the difficulty of attracting modern industry to the region. In addition, the smaller school-age population has forced the consolidation of school districts and the closure of high schools in some communities. The continuing population loss has led some to suggest that the current use of the drier parts of the Great Plains is not sustainable, and there has been a proposal - the "Buffalo Commons" - to return approximately 139,000 square miles (360,000 km2) of these drier parts to native prairie land.

paragraph_text: The sovereign territory of Israel (according to the demarcation lines of the 1949 Armistice Agreements and excluding all territories captured by Israel during the 1967 Six-Day War) is approximately 20,770 square kilometers (8,019 sq mi) in area, of which two percent is water. However Israel is so narrow that the exclusive economic zone in the Mediterranean is double the land area of the country. The total area under Israeli law, including East Jerusalem and the Golan Heights, is 22,072 square kilometers (8,522 sq mi), and the total area under Israeli control, including the military-controlled and partially Palestinian-governed territory of the West Bank, is 27,799 square kilometers (10,733 sq mi). Despite its small size, Israel is home to a variety of geographic features, from the Negev desert in the south to the inland fertile Jezreel Valley, mountain ranges of the Galilee, Carmel and toward the Golan in the north. The Israeli Coastal Plain on the shores of the Mediterranean is home to 57 percent of the nation's population. East of the central highlands lies the Jordan Rift Valley, which forms a small part of the 6,500-kilometer (4,039 mi) Great Rift Valley.

paragraph_text: The U.S. Virgin Islands consist of the main islands of Saint Croix, Saint John, and Saint Thomas, and many other surrounding minor islands. The total land area of the territory is 133.73 square miles (346.36 km). The territory's capital is Charlotte Amalie on the island of Saint Thomas.

paragraph_text: The biodiversity of plant species is the highest on Earth with one 2001 study finding a quarter square kilometer (62 acres) of Ecuadorian rainforest supports more than 1,100 tree species. A study in 1999 found one square kilometer (247 acres) of Amazon rainforest can contain about 90,790 tonnes of living plants. The average plant biomass is estimated at 356 ± 47 tonnes per hectare. To date, an estimated 438,000 species of plants of economic and social interest have been registered in the region with many more remaining to be discovered or catalogued. The total number of tree species in the region is estimated at 16,000.

paragraph_text: Twinka Thiebaud (December 9, 1945), is an American model who posed for many of the most important photographers of the 20th century.

paragraph_text: Vitória do Jari ("Jari's Victory") is a municipality located in the southernmost tip of the state of Amapá in Brazil. Its population is 14,680 and its area is . Vitória do Jari has a population density of 5.9 inhabitants per square kilometer.

paragraph_text: Jerusalem reached a peak in size and population at the end of the Second Temple Period: The city covered two square kilometers (0.8 sq mi.) and had a population of 200,000. In the five centuries following the Bar Kokhba revolt in the 2nd century, the city remained under Roman then Byzantine rule. During the 4th century, the Roman Emperor Constantine I constructed Christian sites in Jerusalem such as the Church of the Holy Sepulchre.

paragraph_text: Estonia's land border with Latvia runs 267 kilometers; the Russian border runs 290 kilometers. From 1920 to 1945, Estonia's border with Russia, set by the 1920 Tartu Peace Treaty, extended beyond the Narva River in the northeast and beyond the town of Pechory (Petseri) in the southeast. This territory, amounting to some 2,300 square kilometres (888 sq mi), was incorporated into Russia by Stalin at the end of World War II. For this reason the borders between Estonia and Russia are still not defined.

paragraph_text: Khokhovka includes 23 unique monuments from the 17th – early 20th centuries. The territory is about 35 ha with many wooden constructions and buildings that were moved here from different places of the Perm Krai.

paragraph_text: He was born in Ahoskie, North Carolina, the son of Lucy Peoples and an unknown father. He graduated as valedictorian of Waters Training School in Winton, North Carolina, in 1901, and attended Wayland Academy and Virginia Union University in Richmond, Virginia, from 1901 to 1903. He then attended Western University of Pennsylvania, (now the University of Pittsburgh) and graduated from its law school in 1909. He passed the bar examination in 1909 and married Jessie Matthews from Gettysburg, Pennsylvania, on February 17, 1919.

paragraph_text: Maidan Nezalezhnosti ( , literally: Independence Square) is the central square of Kiev, the capital city of Ukraine. One of the city's main squares, it is located on Khreshchatyk Street in the Shevchenko Raion. The square has been known under many different names, but often it is called simply "Maidan" ("square").

paragraph_text: Trg Slobode or Freedom Square () is the main town square in Nikšić, Montenegro. It's the largest town square in the country. Numerous cafés and restaurants are located on the square, as well as many stores, banks and an art gallery. It also serves as one of the main concert venues in the city.

paragraph_text: Admiral Charles Henry Adair (2 July 1851 – 9 March 1920) was a Royal Navy officer in mid-late 19th century and the early 20th century. He retired just prior to the outbreak of World War I.

paragraph_text: Denton Historic District is a national historic district in Denton, Caroline County, Maryland, United States. It is located on the flat land along the south bank of the Choptank River. The west end of the district focuses on the courthouse square, which was laid out in the 1790s, with its late 19th century courthouse building and square faced on all sides by noteworthy residences and commercial structures. The historic commercial district extends east of the square along Market Street. It comprises a notable collection of two-story brick storefronts and one-story concrete block commercial structures, with frame residences representing late-19th / early-20th century forms interspersed among them.

paragraph_text: Like two similar players, Charles Oakley before him and Ben Wallace (also undrafted) after him, Davis attended Virginia Union University and made a name for himself as a hard-nosed defensive player and rebounder.

paragraph_text: Lutsel K'e Dene School is a K-12 public school located in Lutselk'e, Northwest Territories, Canada. The school currently represents the only public education option for youth in the settlement and serves a student population of approximately 73 students. The administration of the school is the responsibility of the South Slave Divisional Education Council (SSDEC).

paragraph_text: Sergels torg ("Sergel's Square") is the most central public square in Stockholm, Sweden, named after 18th-century sculptor Johan Tobias Sergel, whose workshop was once located north of the square.

paragraph_text: Bogotá (/ ˈboʊɡətɑː /, / ˌbɒɡəˈtɑː /, / ˌboʊ - /; Spanish pronunciation: (boɣoˈta) (listen)), officially Bogotá, Distrito Capital, abbreviated Bogotá, D.C., and formerly known as Santafé de Bogotá between 1991 and 2000, is the capital and largest city of Colombia, administered as the Capital District, although often thought of as part of Cundinamarca. Bogotá is a territorial entity of the first order, with the same administrative status as the departments of Colombia. It is the political, economic, administrative, industrial, artistic, cultural, and sports center of the country.

paragraph_text: By the beginning of the 20th century, the city's population had reached 85,050 in 5 square miles (13 km2), making it the most densely populated city in the Southern United States. In 1900, the Census Bureau reported Richmond's population as 62.1% white and 37.9% black. Freed slaves and their descendants created a thriving African-American business community, and the city's historic Jackson Ward became known as the "Wall Street of Black America." In 1903, African-American businesswoman and financier Maggie L. Walker chartered St. Luke Penny Savings Bank, and served as its first president, as well as the first female bank president in the United States. Today, the bank is called the Consolidated Bank and Trust Company, and it is the oldest surviving African-American bank in the U.S. Other figures from this time included John Mitchell, Jr. In 1910, the former city of Manchester was consolidated with the city of Richmond, and in 1914, the city annexed Barton Heights, Ginter Park, and Highland Park areas of Henrico County. In May 1914, Richmond became the headquarters of the Fifth District of the Federal Reserve Bank.

Question: At the start of the 20th Century, how many square kilometers was the city that contains the university where Charles Oakley was educated?
Answer: 13