Indiana Territory in the context of "Old Northwest"

The Northwest Territory, also known as the Old Northwest and formally known as the Territory Northwest of the River Ohio, was formed from part of the unorganized western territory of the United States after the American Revolution. Established in 1787 by the Congress of the Confederation through the Northwest Ordinance, it was the nation's first post-colonial organized incorporated territory.

At the time of its creation, the territory included all the land west of Pennsylvania, northwest of the Ohio River and east of the Mississippi River below the Great Lakes, and what later became known as the Boundary Waters. The region was ceded to the United States in the Treaty of Paris of 1783. Throughout the Revolutionary War, the region was part of the British Province of Quebec and the western theater of the war. It spanned all or large parts of six eventual U.S. states (Ohio, Indiana, Illinois, Michigan, Wisconsin, and the northeastern part of Minnesota). Reduced to present-day Ohio, and some additional lands north and east on July 4, 1800, it ceased to exist March 1, 1803, when the southeastern portion of the territory was admitted to the Union as the state of Ohio, and the remainder attached to Indiana Territory.

The Harmony Society was a Christian theosophy and pietist society founded in Iptingen, Germany, in 1785. Due to religious persecution by the Lutheran Church and the government in Württemberg, the group moved to the United States, where representatives purchased land in Butler County, Pennsylvania. On February 15, 1805, the group of approximately 400 formally organized the Harmony Society at today's Harmony, Pennsylvania, settling on the land and placing all their goods in common.

Under its founder and spiritual leader, Johann Georg Rapp (1757–1847); Frederick (Reichert) Rapp (1775–1834), his adopted son who managed its business affairs; and their associates, the Society existed for one hundred years, roughly from 1805 until 1905. Members were known as Harmonists, Harmonites, or Rappites. The Society is best known for its worldly successes, most notably the establishment of three model communities, the first at Harmony, Pennsylvania; the second, also called Harmony, in the Indiana Territory, now New Harmony, Indiana; and the third and final town at Economy, now Ambridge, Pennsylvania.

George Rogers Clark (November 19, 1752 – February 13, 1818) was an American military officer and surveyor from Virginia who became the highest-ranking Patriot military officer on the northwestern frontier during the Revolutionary War. He served as leader of the Virginia militia in Kentucky (then part of Virginia) throughout much of the war. He is best known for his captures of Kaskaskia in 1778 and Vincennes in 1779 during the Illinois campaign, which greatly weakened British influence in the Northwest Territory (then part of the British Province of Quebec) and earned Clark the nickname of "Conqueror of the Old Northwest". The British ceded the entire Northwest Territory to the United States in the 1783 Treaty of Paris.

Clark's major military achievements occurred before his thirtieth birthday. Afterward, he led militia forces in the opening engagements of the Northwest Indian War, but was accused of being drunk on duty. He was disgraced and forced to resign, despite his demand for a formal investigation into the accusations. Clark left Kentucky to live in the Indiana Territory but was never fully reimbursed by the Virginian government for his wartime expenditures. During the final decades of his life, he worked to evade creditors and suffered living in increasing poverty and obscurity. He was involved in two failed attempts to open the Spanish-controlled Mississippi River to American traffic. Following a stroke and the amputation of his right leg, he became disabled. Clark was aided in his final years by family members, including his younger brother William, one of the leaders of the Lewis and Clark Expedition. He died of a stroke on February 13, 1818.

The Battle of Tippecanoe (/ˌtɪpəkəˈnuː/ TIP-ə-kə-NOO) was fought on November 7, 1811, in Battle Ground, Indiana, between American forces led by then Governor William Henry Harrison of the Indiana Territory and tribal forces associated with Shawnee leader Tecumseh and his brother Tenskwatawa (commonly known as "The Prophet"), leaders of a confederacy of various tribes who opposed European-American settlement of the American frontier. As tensions and violence increased, Governor Harrison marched with an army of about 1,000 men to attack the confederacy's headquarters at Prophetstown, near the confluence of the Tippecanoe River and the Wabash River.

Tecumseh was not yet ready to oppose the United States by force and was away recruiting allies when Harrison's army arrived. Tenskwatawa was in charge of the Indian warriors during his brother's absence but he was a spiritual leader, not a military man. Harrison camped near Prophetstown on November 6 and arranged to meet with Tenskwatawa the following day. Early the next morning warriors from Prophetstown attacked Harrison's encampment. They took the army by surprise, but Harrison and his men stood their ground for more than two hours. After the battle, Harrison's men burned the abandoned village of Prophetstown to the ground, destroying the food supplies stored there for the winter. The soldiers then returned to their homes.

Vincennes is a city in and the county seat of Knox County, Indiana, United States. It is located on the lower Wabash River in the southwestern part of the state, nearly halfway between Evansville and Terre Haute. It was founded in 1732 by French fur traders, including the namesake François-Marie Bissot, Sieur de Vincennes. It is the oldest continually inhabited European settlement in Indiana and was its longest serving territorial capital. It is one of the oldest settlements west of the Appalachians. The population was 16,759 at the 2020 census.

In 1840, William Henry Harrison was elected President of the United States. Harrison, who had served as a general and as United States Senator from Ohio, defeated the incumbent president, Democrat Martin Van Buren, in a campaign that broke new ground in American politics. Among other firsts, Harrison's victory was the first time the Whig Party won a presidential election. A month after taking office, Harrison died and his running mate John Tyler served the remainder of his term, but broke from the Whig agenda, and was expelled from the party.

Harrison was born into wealth in 1773. He started a military career before using his father Benjamin Harrison V's connections to gain office on the frontier. After a decade as governor of Indiana Territory, Harrison made his reputation fighting the Native Americans, notably at the 1811 Battle of Tippecanoe and, once the War of 1812 began, the British. He was triumphant over both at the Battle of the Thames in 1813. After the war, he was elected to Congress from Ohio and served in a variety of offices over the next two decades. A regional Whig candidate for the White House in 1836, he finished second to Van Buren and did not stop running for president until he won the office four years later.

The Constitution of Indiana is the highest body of state law in the U.S. state of Indiana. It establishes the structure and function of the state and is based on the principles of federalism and Jacksonian democracy. Indiana's constitution is subordinate only to the U.S. Constitution and federal law. Prior to the enactment of Indiana's first state constitution and achievement of statehood in 1816, the Indiana Territory was governed by territorial law. The state's first constitution was created in 1816, after the U.S. Congress had agreed to grant statehood to the former Indiana Territory. The present-day document, which went into effect on November 1, 1851, is the state's second constitution. It supersedes Indiana's 1816 constitution and has had numerous amendments since its initial adoption.

Indiana's constitution is composed of a preamble, articles, and amendments. Among other provisions, it specifies a republican form of government (pursuant to Article IV, Section 4, of the U.S. Constitution) consisting of three branches: executive (including administration), legislative, and judicial. The state constitution also includes a bill of rights, grants suffrage and regulates elections, provides for a state militia, state educational institutions, and sets limits on government indebtedness. The Indiana General Assembly may amend the constitution, subject to ratification by vote of the people, as specified in Article 16 of Indiana's 1851 constitution.

The Indiana Supreme Court, established by Article 7 of the Indiana Constitution, is the highest judicial authority in the state of Indiana. Located in Indianapolis, the Court's chambers are in the north wing of the Indiana Statehouse.

In December 1816, the Indiana Supreme Court succeeded the General Court of the Indiana Territory as the state's high court. During its long history the Court has heard a number of high-profile cases, including Lasselle v. State (1820). Originally begun as a three-member judicial panel, the Court underwent major reforms in 1852 and 1971, as well as several other reorganizations. Court reforms led to a majority of Supreme Court cases being delegated to lower courts, an enlarged panel of justices, and employment of a large staff to assist as its caseload increases.