paragraph_text: David Thompson (30 April 1770 -- 10 February 1857) was a British - Canadian fur trader, surveyor, and map - maker, known to some native peoples as Koo - Koo - Sint or ``the Stargazer. ''Over Thompson's career, he travelled some 90,000 kilometres (56,000 mi) across North America, mapping 4.9 million square kilometres (1.9 million square miles) of North America along the way. For this historic feat, Thompson has been described as the`` greatest land geographer who ever lived.''

paragraph_text: Warrendale is a northern suburb of Pittsburgh, Pennsylvania, United States. It is located in the northwestern corner of Allegheny County. It is the home to the corporate headquarters of rue21, Joy Mining Machinery, Printing Industries of America and SAE International, as well as the United States Postal Service Pittsburgh Network Distribution Center, one of 21 such mail delivery hubs in the country. It is also the home to one of American Eagle Outfitters' four North American distribution centers.

paragraph_text: The highest point in the state is Clingmans Dome at 6,643 feet (2,025 m). Clingmans Dome, which lies on Tennessee's eastern border, is the highest point on the Appalachian Trail, and is the third highest peak in the United States east of the Mississippi River. The state line between Tennessee and North Carolina crosses the summit. The state's lowest point is the Mississippi River at the Mississippi state line (the lowest point in Memphis, nearby, is at 195 ft (59 m)). The geographical center of the state is located in Murfreesboro.

paragraph_text: Through the Missouri Compromise of 1820, Congress kept a tenuous balance of political power between North and South. In May 1854, the Kansas -- Nebraska Act, created from unorganized Indian lands and territories of Kansas and Nebraska, permitted residency by U.S. citizens, who were to determine their state's slavery status and seek admission to the Union. Immigrants supporting both sides of the question arrived in Kansas to establish residency and gain the right to vote. However, Kansas Territory officials were appointed (1854) by the pro-slavery administration of President Franklin Pierce (in office 1853 -- 1857), and thousands of non-resident pro-slavery Missourians entered Kansas with the goal of winning elections. They captured territorial elections, sometimes by fraud and intimidation. In response, Northern abolitionist elements flooded Kansas with ``free - soilers. ''Anti-slavery Kansas residents wrote the first Kansas Constitution (1855) and elected the Free State legislature in Topeka; this stood in opposition to the pro-slavery government in Lecompton. The two Territorial governments increased as well as symbolized the strife of Bleeding Kansas.

paragraph_text: As of July 2017, there are a total of 1,073 World Heritage Sites located in 167 ``States Parties ''Of the 1,073 sites, 832 are cultural, 206 are natural and 35 are mixed properties. The countries have been divided by the World Heritage Committee into five geographic zones: Africa, Arab States, Asia and the Pacific, Europe and North America, and Latin America and the Caribbean. The country with the most number of sites (including sites shared with other countries) is Italy, with 53 entries. The country with the most number of sites by itself alone (excluding sites shared with other countries) is China, with 51 entries.

paragraph_text: Civil strife in the early 1990s greatly increased the size of the Somali diaspora, as many of the best educated Somalis left for the Middle East, Europe and North America. In Canada, the cities of Toronto, Ottawa, Calgary, Edmonton, Montreal, Vancouver, Winnipeg and Hamilton all harbor Somali populations. Statistics Canada's 2006 census ranks people of Somali descent as the 69th largest ethnic group in Canada.

paragraph_text: The Mattoon Jewish Community Center is a Jewish congregation in Mattoon, Illinois, United States of America. It is notable as North America's smallest Reform synagogue, with four households. The congregation's services are held at Trinity Episcopal Church in Mattoon, which is on the National Register of Historic Places.

paragraph_text: The North Carolina Zoological Park is located in Asheboro in Randolph County, North Carolina in the Uwharrie Mountains near the geographic center of the state, approximately 75 miles (121 km) west of Raleigh, NC, United States. At over 2,000 acres (810 ha), it is the largest walk - through zoo in the world, and one of only two state - owned zoos in the United States. The NC Zoo has over 1,600 animals from more than 250 species primarily representing Africa and North America. The zoo is open 364 days a year and receives more than 700,000 visitors annually.

paragraph_text: Lyme Center is an unincorporated community in the town of Lyme in Grafton County, New Hampshire, in the United States. It is located close to the geographic center of the town of Lyme, approximately east of New Hampshire Route 10 where it passes through the main village of Lyme. The center of the village is listed on the National Register of Historic Places as the Lyme Center Historic District.

paragraph_text: Beginning the Age of Revolution, the American Revolution and the ensuing political upheaval during the last half of the 18th century saw the Thirteen Colonies of North America overthrow the governance of the Parliament of Great Britain, and then reject the British monarchy itself to become the sovereign United States of America. In this period the colonies first rejected the authority of the Parliament to govern them without representation, and formed self-governing independent states. The Second Continental Congress then joined together against the British to defend that self-governance in the armed conflict from 1775 to 1783 known as the American Revolutionary War (also called American War of Independence).

paragraph_text: North Carolina consists of three main geographic sections: the Atlantic Coastal Plain, which occupies the eastern 45% of the state; the Piedmont region, which contains the middle 35%; and the Appalachian Mountains and foothills. The extreme eastern section of the state contains the Outer Banks, a string of sandy, narrow barrier islands between the Atlantic Ocean and two inland waterways or "sounds": Albemarle Sound in the north and Pamlico Sound in the south. They are the two largest landlocked sounds in the United States.

paragraph_text: North Dakota is in the U.S. region known as the Great Plains. The state shares the Red River of the North with Minnesota to the east. South Dakota is to the south, Montana is to the west, and the Canadian provinces of Saskatchewan and Manitoba are to the north. North Dakota is situated near the middle of North America with a stone marker in Rugby, North Dakota marking the ``Geographic Center of the North American Continent ''. With an area of 70,762 square miles (183,273 km), North Dakota is the 19th largest state.

paragraph_text: Bleeding Kansas, Bloody Kansas or the Border War was a series of violent political confrontations in the United States between 1854 and 1861 involving anti-slavery ``Free - Staters ''and pro-slavery`` Border Ruffian'', or ``southern ''elements in Kansas. At the heart of the conflict was the question of whether Kansas would allow or outlaw slavery, and thus enter the Union as a slave state or a free state. The Kansas -- Nebraska Act of 1854 called for`` popular sovereignty'' -- that is, the decision about slavery was to be made by the settlers (rather than outsiders). It would be decided by votes -- or more exactly which side had more votes counted by officials. Pro-slavery forces said every settler had the right to bring his own property, including slaves, into the territory. Anti-slavery ``free soil ''forces said the rich slaveholders would buy up all the good farmland and work it with black slaves, leaving little or no opportunity for non-slaveholders. As such, Bleeding Kansas was a conflict between anti-slavery forces in the North and pro-slavery forces from the South over the issue of slavery in the United States, and its violence indicated that compromise was unlikely, and thus it presaged the Civil War.

paragraph_text: The 15 post-Soviet states are typically divided into the following five groupings. Each of these regions has its own common set of traits, owing not only to geographic and cultural factors but also to that region's history in relation to Russia. In addition, there are a number of de facto independent, but internationally unrecognized states (see the section Separatist conflicts below).

paragraph_text: Sectional tensions had long existed between the states located north of the Mason–Dixon line and those south of it, primarily centered on the "peculiar institution" of slavery and the ability of states to overrule the decisions of the national government. During the 1840s and 1850s, conflicts between the two sides became progressively more violent. After the election of Abraham Lincoln in 1860 (who southerners thought would work to end slavery) states in the South seceded from the United States, beginning with South Carolina in late 1860. On April 12, 1861, forces of the South (known as the Confederate States of America or simply the Confederacy) opened fire on Fort Sumter, whose garrison was loyal to the Union.

paragraph_text: The Midwestern United States, also referred to as the American Midwest, Middle West, or simply the Midwest, is one of four geographic regions defined by the United States Census Bureau. It occupies the northern central part of the United States of America. It was officially named the North Central region by the Census Bureau until 1984. It is located between the Northeastern U.S. and the Western U.S., with Canada to its north and the Southern U.S. to its south.

paragraph_text: Its position as located in a 1918 survey is located at 39 ° 50 ′ N 98 ° 35 ′ W ﻿ / ﻿ 39.833 ° N 98.583 ° W ﻿ / 39.833; - 98.583 ﻿ (Geographic Center of the Contiguous United States), in Kansas about 2.6 miles (4.2 km) northwest of the center of Lebanon, approximately 12 miles (19 km) south of the Kansas - Nebraska border.

paragraph_text: Norway is a rural unincorporated community in Republic County, Kansas, United States. Its geographical location is in North Central Kansas. Norway is located at .

paragraph_text: California is a U.S. state on the western coast of North America. Covering an area of , California is geographically diverse. The Sierra Nevada, the fertile farmlands of the Central Valley, and the arid Mojave Desert of the south are some of the major geographic features of this U.S. state. It is home to some of the world's most exceptional trees: the tallest (coast redwood), most massive (Giant Sequoia), and oldest (bristlecone pine). It is also home to both the highest (Mount Whitney) and lowest (Death Valley) points in the 48 contiguous states.

paragraph_text: Rutland is a town in Worcester County, Massachusetts, United States. The population was 7,973 at the 2010 census. Rutland is the geographic center of Massachusetts; a tree, the Central Tree, located on Central Tree Road, marks the general spot.

Question: Who was the conflict between in the strife of bleeding, in the state that contains the geographic center of North America?
Answer: anti-slavery ``Free - Staters ''and pro-slavery`` Border Ruffian'', or ``southern ''elements