We take the liberty of quoting here a chapter from "The Louisiana Purchase," by C. M. Geer, in The History of North America, Vol. VIII, edited by Guy Carleton Lee, and published by George Barrie & Sons, Philadelphia, 1904. It gives in brief space the more important historical facts connected with the formation of the State.
"The governmental experiences of Iowa before its admission into the Union as a State were many and varied. Its discoverers were the missionary priest Jacques Marquette and the explorer Louis Joliet, who were living at St. Mary's, the oldest settlement in the present State of Michigan. On May 13, 1673, with five Canadian boatmen, these two men left on an exploring expedition, and on June 25, 1673, landed near the mouth of Des Moines River.[B] By right of discovery France claimed jurisdiction over the country thus visited until 1763, when the Territory was ceded to Spain. On October 1, 1800, it was ceded with the rest of Louisiana Territory from Spain back to France. On the 30th of April, 1803, it was in turn ceded to the United States by France as a part of the Louisiana Purchase.
"These changes of government had little effect upon what was to constitute the future State of Iowa, because the Indians remained in almost undisputed possession. Although discovered and claimed by France in 1673, no attempt at settlement was made until 1788, when Julian Dubuque, a Canadian, obtained from Blondeau and two other Indian chiefs a grant of lands. This claim was twenty-one miles long and extended from the Mississippi westward nine miles. The grant was confirmed, in a qualified way, by Carondelet, Spanish governor at New Orleans. Dubuque engaged in mining and trading with the Indians, making his headquarters at the place which now bears his name. The question of the validity of his claim to this great tract of land came before the United States Supreme Court in 1854, and the decision of that body was that his grant was only a temporary license to dig ore.
"In 1799, a trading post was established on the Mississippi within the present territory of Iowa. This settlement and the one at Dubuque were abandoned, so that Iowa was practically an unknown and undesired country at the time when it came under the control of the United States in 1803. It was at that time Indian territory, occupied by the Sacs, Foxes, and Iowas, with the still more warlike Sioux on the north and east.
"On the 31st of October, 1803, a temporary government was authorized for the recently acquired territory. By Act of Congress, approved March 26, 1803, Louisiana was erected into two Territories and provision made for the administration of each. The upper part was known as the District of Louisiana and included Arkansas, Missouri, and Iowa. This was placed temporarily under the jurisdiction of the Territory of Indiana. On July 4, 1805, all this northern district became the Territory of Louisiana, with a separate Territorial government. The legislative power was vested in the governor and three judges to be appointed by the President and Senate. This condition continued until December 7, 1812, when the Territory of Louisiana became the Territory of Missouri. In 1821, Missouri was admitted into the Union, and this admission of Missouri carried with it the abolition of the government of Missouri Territory, so that for a time Iowa was without any government. It is a question how much law remained in force in Iowa after the admission of Missouri. It is probable that the only civil law in force was the proviso of the Missouri bill, which prohibited slavery north of thirty-six degrees thirty minutes north latitude. No provision was made for that portion of the Territory of Missouri until June 28, 1834, when Congress attached the present State of Iowa, together with other territory, to the Territory of Michigan.
"On July 3, 1836, it was included in the newly organized Territory of Wisconsin. On June 12, 1838, the Territory of Iowa was constituted by Act of Congress. This Territory included 'all that part of the present Territory of Wisconsin which lies west of Mississippi River and west of a line due north from the sources or headwaters of the Mississippi to the territorial line.'
"From the time of the purchase in 1803 up to the date of the organization of the Territory in 1838 there had been a gradual increase in the knowledge of this land and a growing appreciation of its value. There had been parties of hunters and trappers who made temporary settlements on the banks of the Mississippi in the period from 1820 to 1830. It was not till steam navigation was established on the Mississippi that there grew up a demand for Iowa lands. Southeastern Illinois and northwestern Missouri were settled and the pioneers naturally looked to the equally desirable lands in Iowa. Various exploring expeditions also contributed to a desire to settle in the territory. Lewis and Clark added to the knowledge of its western borders by their expedition in 1805. Pike in the same year traversed another part of the Territory, and these explorers brought back accounts of its great fertility and of its desirability for settlement.
"The government established a broad strip of neutral ground between the Sioux in the north and the Sacs and Foxes in the south to keep these tribes at peace, and in 1830 acquired lands on the Missouri to be used as Indian reservations. Here and there in the Iowa Territory were white men who had gained the friendship of the Indians and lived with them. There were trading posts of the American Fur Company and miners at Dubuque, who were licensed by the government to work at that point. Iowa remained the home of the Indians until the close of the Black Hawk War, when General Winfield Scott, on September 15, 1832, concluded a treaty of peace with the Sacs and Foxes, by which the Indian title was extinguished to that part of land known as the Black Hawk Purchase. This was the eastern part of Iowa and extended along the Mississippi, from Missouri on the south to the 'Neutral Grounds' on the north, and westward a distance of fifty miles. It contained about six million acres and was to be surrendered by the Indians on June 1, 1833. This gave the first opportunity for the legal settlement of Iowa by citizens of the United States.
"June 1, 1833, was fixed as the day on which the Indians were to be removed from the Black Hawk Purchase and the lands opened for settlement. The would-be settlers came in large numbers to the banks of the Mississippi, ready to cross and get the choice of the land. United States troops kept guard on the western shore of the river and prevented any persons from entering the Purchase before the appointed time. At precisely twelve o'clock, midnight, June 1st, there was a wild rush of settlers from East and South and the settlement of Iowa was begun.
"There was a rapid increase in population until the separate Territorial government was established, June 12, 1838. The first capital was Burlington, and the place of meeting of the legislature was in a church. Robert Lucas was appointed Territorial Governor, and William B. Conway, Secretary. The Territorial Legislature met on November 12, 1838. Burlington continued to be the seat of Territorial government till 1841, when Iowa City became the capital.