First steamboat on the Upper Mississippi, with Maj. Taliafero and Count Beltrami.

Lieut. Bayfield, of the British Navy, makes a survey of Lake Superior.

1824. First term of United States court held at Green Bay, Judge Duane Doty presiding.

1825. Great flood on the Red River of the North; a part of the colony driven to Minnesota, and settle near Fort Snelling.

1826. First steamboat on Lake Michigan.

1827. Rush of speculators to lead mines.

Treaty with Menomonies at Butte des Morts.

1828. Fort Winnebago built. Indian treaty at Green Bay. Lead ore discovered at Mineral Point and at Dodgeville.

1832. Black Hawk War.

Schoolcraft explored sources of Mississippi river. First mission established at Leech Lake, by Rev. W. T. Boutwell, now of Stillwater.