US Genealogy Map Project
Image provided by "Graphic Maps"
Image provided by "Graphic Maps"
1783 Acquired by treaty from Great Britain: Lands North of River
Ohio, bordered on the West by the Mississippi River, with a Northern
boundary starting at Lake of the Woods in the NorthWest continuing East
through the center points of Lakes Superior, Huron, Erie and Ontario.
1785 Massachusetts relinquishs claims to Southern portions of Michigan.
1787 "NorthWest Territory" organized from areas of Wisconsin,
Michigan, Illinois, Indiana, majority of Ohio, and NorthEast Minnesota.
1800 Indiana Territory organized from NorthWest Territory, taking
Wisconsin, Illinois, Indiana, NorthEast Minnesota and West half of
Michigan. "New" NorthWest Territory made up of Ohio and East half
of Michigan.
1803 NorthWest Territory dissolved, "East half" added to Indiana Territory.
1805 Lower Michigan organized as Territory of Michigan from Indiana Territory.
1809 Illinois Territory organized from Indiana Territory, consisting of
Wisconsin, Illinois and NorthEast Minnesota. Indiana and Upper Michigan
remaining in Indiana Territory.
1816 Indiana Territory dissolved, the U.P. added to Illinois Territory.
1818 Illinois Territory dissolved, remainder added to Michigan Territory.
1836 Wisconsin Territory created from Michigan Territory. Includes
Wisconsin, Eastern Minn., and the area "East of the Missouri River"
(Central/East N.Dakota and S.Dakota, Iowa and Western half of Minnesota.)
Remaining Michigan Territory consists of Lower and Upper Michigan.
1837 Michigan admitted to the Union as 26th State.
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12/1998 M.A.Leonard, Last Update-01/02/2006