Editing Indiana Territory (section)

==Geographical boundaries==
{{Historical populations
|type= USA
|1800|5,641
|1810|24,520
|footnote=Source: 1800–1810 (1800 also includes [[Illinois]] and [[Mackinac County, Michigan]])<ref name="Forstall pp. 47–49">{{cite report|editor-last=Forstall|editor-first=Richard L.|title=Population of the States and Counties of the United States: 1790–1990|pages=47–49|publisher=[[United States Census Bureau]]|url=https://www2.census.gov/library/publications/decennial/1990/population-of-states-and-counties-us-1790-1990/population-of-states-and-counties-of-the-united-states-1790-1990.pdf|access-date=May 18, 2020}}</ref><ref name="Forstall pp. 51–53">{{cite report|editor-last=Forstall|editor-first=Richard L.|title=Population of the States and Counties of the United States: 1790–1990|pages=51–53|publisher=[[United States Census Bureau]]|url=https://www2.census.gov/library/publications/decennial/1990/population-of-states-and-counties-us-1790-1990/population-of-states-and-counties-of-the-united-states-1790-1990.pdf|access-date=May 18, 2020}}</ref><ref name="Forstall pp. 81–83">{{cite report|editor-last=Forstall|editor-first=Richard L.|title=Population of the States and Counties of the United States: 1790–1990|pages=81–83|publisher=[[United States Census Bureau]]|url=https://www2.census.gov/library/publications/decennial/1990/population-of-states-and-counties-us-1790-1990/population-of-states-and-counties-of-the-united-states-1790-1990.pdf|access-date=May 18, 2020}}</ref>
}}

When the Indiana Territory was formed in 1800, its original boundaries included the western portion of the Northwest Territory. This encompassed an area northwest of a line beginning at the [[Ohio River]], on the bank opposite the mouth of the [[Kentucky River]], extending northeast to [[Fort Recovery]] in present-day western [[Ohio]], and north to the border between the United States and Canada along a line approximately 84 degrees 45 minutes West longitude.<ref>{{cite book | author=James H. Madison and Lee Ann Sandweiss | title = Hoosiers and the American Story| publisher =Indiana Historical Society Press | year =2014 | location =Indianapolis | page =43  | isbn =9780871953636}}</ref><ref name=Cutler53-54>{{cite book | author=Jervis Cutler and Charles Le Raye | title =A Topographical Description of the State of Ohio, Indiana Territory, and Louisiana | publisher =Arnot Press | year =1971 | location =New York | pages =53–54 | isbn=9780405028397}} Reprint of 1812 edition.</ref><ref>{{cite book | author=John D. Barnhart and Dorothy L. Riker | title =Indiana to 1816: The Colonial Period | publisher =Indiana Historical Bureau and the Indiana Historical Society | series =The History of Indiana | volume =1 | year =1971 | location =Indianapolis | pages=311–12 | oclc=154955}}</ref>

The territory initially included most of the present-day state of [[Indiana]]; all of present-day states of [[Illinois]] and [[Wisconsin]]; fragments of present-day [[Minnesota]] that were east of the [[Mississippi River]]; nearly all of the [[Upper Peninsula of Michigan|Upper Peninsula]] and the western half of the [[Lower Peninsula of Michigan|Lower Peninsula]] of present-day [[Michigan]]; and a narrow strip of land in present-day Ohio that was northwest of Fort Recovery.<ref name=Cutler53-54/><ref>{{cite book | editor =Darrel Bigham | title =Indiana Territory, 1800-2000: A Bicentennial Perspective | publisher =Indiana Historical Society | year =2001 | location =Indianapolis | pages =[https://archive.org/details/indianaterritory0000unse/page/7 7–8] | url =https://archive.org/details/indianaterritory0000unse/page/7 | isbn =9780871951557 }}</ref> This latter parcel became part of Ohio when it attained statehood in 1803. The Indiana Territory's southeast boundary was shifted in 1803 when Ohio became a state, to the mouth of the [[Great Miami River]]. In addition, the eastern part of present-day Michigan was added to the Indiana Territory. The territory's geographical area was further reduced in 1805 with the creation of the [[Michigan Territory]] to the north, and in 1809 when the [[Illinois Territory]] was established to the west.<ref>Cutler and Le Raye, pp. 110 and 112.</ref>