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The Territory Northwest of the River Ohio, more commonly known as the Northwest Territory, was an organized incorporated territory of the United States spanning most or large parts of six eventual U.S. States. It existed legally from July 13, 1787, until March 1, 1803, when the southeastern portion of the territory was admitted to the Union as the state of Ohio, and the remainder was reorganized. Previously, it had been disputed between Great Britain and the French Crown—with portions claimed by the colonies of Maryland, Virginia, and Pennsylvania, and also claimed by the French as part of the New France Province of Quebec furnishing one cause of the French and Indian War and the Seven Years' Wars. Further after 1763 under British rule, the territory provided one of the more popular causes of the American Revolution, motivating less established Americans to support independence, when it was set aside in the Royal Proclamation of 1763 for use by Native Americans. The region was assigned to the United States in the Treaty of Paris of 1783, but sporadic westward emigrant settlements had already resumed late in the war after the Iroquois Confederation's power was broken, and boomed soon after the Revolution ended as the westward traffic soon spurred expansion of the gateway trading post into the town of Brownsville, PA ---> as an key west of the mountains outfitting centre, so also stimulating the establishment of the eastern parts of the eventual National Road by private investors. The Cumberland–Brownsville toll road linked the water routes of the Potomac River with the Monongahela River of the Ohio/Mississippi riverine systems in the days when water travel was the only good alternative to walking and riding; and most of the territory and its successors was settled by emigrants passing through the Cumberland Narrows, or along the Mohawk Valley in New York State. The Congress of the Confederation enacted the Northwest Ordinance in 1787 to provide for the administration of the territories and set rules for admission as a state. On August 7, 1789, the new U.S. Congress affirmed the Ordinance with slight modifications under the Constitution. The territory included all the land of the United States west of Pennsylvania and northwest of the Ohio River. It covered all of the modern states of Ohio, Indiana, Illinois, Michigan, and Wisconsin, as well as the northeastern part of Minnesota. The area covered more than . ==History== European exploration of the region began with French-Canadian voyageurs in the 17th century, followed by French missionaries and French fur traders. French-Canadian explorer Jean Nicolet was the first recorded European entrant into the region, landing in 1634 at the current site of Green Bay, Wisconsin (although Étienne Brûlé is stated by some sources as having explored Lake Superior and possibly inland Wisconsin in 1622). The French exercised control from widely separate posts in the region which they claimed as New France, such as the post at Fort Detroit, founded in 1701. France ceded the territory to the Kingdom of Great Britain as part of the Indian Reserve in the 1763 Treaty of Paris, which ended the French and Indian War. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Northwest Territory」の詳細全文を読む スポンサード リンク
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