1796. The western posts were surrendered by the English to the United States, and the ordinance of 1787 extended over the Northwest.
1798-99. The Northwestern Fur Company established itself in Minnesota.
1800. Indiana Territory organized, including Wisconsin.
1803. Antoine Barth settled at the portage of the Fog and Wisconsin rivers.
1804. Indian treaty at St. Louis; Southern Wisconsin purchased.
1805. Michigan Territory organized.
1809. Thomas Nuttall, the botanist, explored Wisconsin.
Illinois Territory was organized, including nearly all the present state of Wisconsin.
1812. Indians assembled at Green Bay to join the English.
1814. Gov. Clark took possession of Prairie du Chien. Prairie du Chien surrendered to the British.