Question: What was the cause of the conflict before the Civil War in the state where Dorothy was from in the Wizard of Oz?

full_context: Document 1: Political interpretations of The Wonderful Wizard of Oz: Littlefield's knowledge of the 1890s was thin, and he made numerous errors, but since his article was published, scholars in history, political science, and economics have asserted that the images and characters used by Baum closely resemble political images that were well known in the 1890s. Quentin Taylor, for example, claimed that many of the events and characters of the book resemble the actual political personalities, events and ideas of the 1890s. Dorothy -- naïve, young and simple -- represents the American people. She is Everyman, led astray and seeking the way back home. Moreover, following the road of gold leads eventually only to the Emerald City, which may symbolize the fraudulent world of greenback paper money that only pretends to have value. It is ruled by a scheming politician (the Wizard) who uses publicity devices and tricks to fool the people (and even the Good Witches) into believing he is benevolent, wise, and powerful when really he is a selfish, evil humbug. He sends Dorothy into severe danger hoping she will rid him of his enemy the Wicked Witch of the West. He is powerless and, as he admits to Dorothy, ``I'm a very bad Wizard ''.
Document 2: Kansas Legislature: During Kansas' first elections for a territorial government on March 30, 1855, nearly 5,000 Missouri men, led by United States Senator David Rice Atchison and other prominent pro-slavery Missourians, entered the territory, took over the polling places, and elected pro-slavery candidates. The elections resulted in 13 pro-slavery members of the upper house of the territorial legislature and one free - state member, who resigned. The lower house ended up with 25 pro-slavery members and one free - state member. Free - Staters immediately cried foul, naming the new Kansas Territorial Legislature the Bogus Legislature. After meeting for one week in Pawnee at the direction of Territorial Governor Andrew Reeder, the thirty - eight pro-slavery legislators reconvened at the Shawnee Manual Labor School between July 16 and August 30, 1855, and began crafting over a thousand pages of laws aimed at making Kansas a slave state.
Document 3: Military history of the United States: 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.
Document 4: Yellow brick road: The road is first introduced in the third chapter of The Wonderful Wizard of Oz. The road begins in the heart of the eastern quadrant called Munchkin Country in the Land of Oz. It functions as a guideline that leads all who follow it, to the road's ultimate destination -- the imperial capital of Oz called Emerald City that is located in the exact center of the entire continent. In the book, the novel's main protagonist, Dorothy, is forced to search for the road before she can begin her quest to seek the Wizard. This is because the cyclone from Kansas did not release her farmhouse closely near it as it did in the various film adaptations. After the council with the native Munchkins and their dear friend the Good Witch of the North, Dorothy begins looking for it and sees many pathways and roads nearby, (all of which lead in various directions). Thankfully it does n't take her too long to spot the one paved with bright yellow bricks.
Document 5: Bleeding Kansas: 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.
Document 6: Dorothy Gale: In later novels, the Land of Oz steadily becomes more familiar to her than her homeland of Kansas. Indeed, Dorothy eventually goes to live in an apartment in the Emerald City's palace but only after her Aunt Em and Uncle Henry have settled in a farmhouse on its outskirts, unable to pay the mortgage on their house in Kansas. Dorothy's best friend Princess Ozma, ruler of Oz, officially makes her a princess of Oz later in the novels.
Document 7: Laura Ingalls Wilder: In 1894, the Wilder family moved to Mansfield, Missouri, and used their savings to make the down payment on an undeveloped property just outside town. They named the place Rocky Ridge Farm and moved into a ramshackle log cabin. At first, Wilder and her husband earned income only from wagon loads of fire wood they would sell in town for 50 cents. Financial security came slowly. Apple trees they planted did not bear fruit for seven years. Wilder's parents - in - law visited around that time and gave them the deed to the house they had been renting in Mansfield, which was the economic boost Wilder's family needed. They then added to the property outside town, and eventually accrued nearly 200 acres (80.9 hectares). Around 1910, they sold the house in town, moved back to the farm, and completed the farmhouse with the proceeds. What began as about 40 acres (16.2 hectares) of thickly wooded, stone - covered hillside with a windowless log cabin became in 20 years a relatively prosperous poultry, dairy, and fruit farm, and a 10 - room farmhouse.
Document 8: American Civil War: The American Civil War (commonly known as the Civil War in the United States) was fought in the United States from 1861 to 1865. The result of a long - standing controversy over slavery, war broke out in April 1861, when Confederates attacked Fort Sumter in South Carolina, shortly after President Abraham Lincoln was inaugurated. The nationalists of the Union proclaimed loyalty to the U.S. Constitution. They faced secessionists of the Confederate States of America, who advocated for states' rights to travel with slave attendants in the Americas or abolished tariffs on cotton and imports.
Document 9: The Wonderful Wizard of Oz: When Dorothy and her friends meet the Wizard of Oz again, Toto tips over a screen in a corner of the throne room that reveals the Wizard. He sadly explains he is a humbug -- an ordinary old man who, by a hot air balloon, came to Oz long ago from Omaha. The Wizard provides the Scarecrow with a head full of bran, pins, and needles (``a lot of bran - new brains ''), the Tin Woodman with a silk heart stuffed with sawdust, and the Cowardly Lion a potion of`` courage''. Their faith in the Wizard's power gives these items a focus for their desires. The Wizard decides to take Dorothy and Toto home and leave the Emerald City. At the send - off, he appoints the Scarecrow to rule in his stead, which he agrees to do after Dorothy returns to Kansas. Toto chases a kitten in the crowd and Dorothy goes after him, but the tethers of the balloon break and the Wizard floats away.
Document 10: Yellow brick road: Yellow brick road Dorothy and her companion befriend the Cowardly Lion, while traveling on the Yellow Brick Road -- illustration by W.W. Denslow (1900). The Oz series location Created by L. Frank Baum Genre Classics children's books Type Road paved with yellow bricks, leading to its destination -- Emerald City
Document 11: Bleeding Kansas: 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.
Document 12: Dorothy Gale: In the Oz books, Dorothy is an orphan raised by her aunt and uncle in the bleak landscape of a Kansas farm. Whether Aunt Em or Uncle Henry is Dorothy's blood relative remains unclear. Uncle Henry makes reference to Dorothy's mother in The Emerald City of Oz, possibly an indication that Henry is Dorothy's blood relative. (It is also possible that ``Aunt ''and`` Uncle'' are affectionate terms of a foster family and that Dorothy is not related to either of them, although Zeb in Dorothy and the Wizard in Oz claims to be Dorothy's second cousin, related through Aunt Em. Little mention is made of what happened to Dorothy's birth parents, other than a passing reference to her mother being dead.) Along with her small black dog, Toto, Dorothy is swept away by a tornado to the Land of Oz and, much like Alice of Alice's Adventures in Wonderland, they enter an alternative world filled with talking creatures. In many of the Oz books, Dorothy is the main heroine of the story. She is often seen with her best friend and the ruler of Oz, Princess Ozma. Her trademark blue and white gingham dress is admired by the Munchkins because blue is their favorite color and white is worn only by good witches and sorceresses, which indicates to them that Dorothy is a good witch.
Document 13: American Civil War: The American Civil War (also known by other names) was a war fought in the United States from 1861 to 1865. As a result of the long - standing controversy over slavery, war broke out in April 1861, when Confederate forces attacked Fort Sumter in South Carolina, shortly after U.S. President Abraham Lincoln was inaugurated. The nationalists of the Union proclaimed loyalty to the U.S. Constitution. They faced secessionists of the Confederate States, who advocated for states' rights to expand slavery.
Document 14: Kansas–Nebraska Act: The Kansas -- Nebraska Act divided the nation and pointed it toward civil war. The Act itself virtually nullified the Missouri Compromise of 1820. The turmoil over the act split both the Democratic and Whig parties and gave rise to the Republican Party, which split the United States into two major political camps, the Republican North and the Democratic South.
Document 15: List of Oz characters (created by Baum): Dorothy Gale is the main character and adolescent protagonist in The Wonderful Wizard of Oz (1900), and the several other sequel Oz books. She is depicted as being a very young, heroic and sweet tempered orphan girl from a small farm on the prairies of Kansas. Baum never reveals Dorothy's age, but she is thought to be no older than twelve years old. In appearance she is described as having chubby little hands, a round rosy face, big earnest eyes filled with awe and a merry laugh. She has a small pet dog she calls Toto, and loves dearly. After her first adventure in the Land of Oz, she returns to Kansas via the charmed Silver Shoes, (Ruby Slippers in the classic MGM musical of 1939) she obtained while there but lost between worlds when she was teleported back. Not much later, she unexpectedly returns to Oz again, thus having several more adventures before permanently settling there as an official princess of Oz in the book The Emerald City of Oz (1910).
ground_truth: anti-slavery ``Free - Staters ''and pro-slavery`` Border Ruffian'', or ``southern ''elements
sub_queries: dorothy wizard of oz where is she from Answer: Kansas
who was the conflict between in the strife of bleeding Kansas Answer: anti-slavery ``Free - Staters ''and pro-slavery`` Border Ruffian'', or ``southern ''elements