“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Yorkville in Kendall County, Illinois — The American Midwest (Great Lakes)

Illinois' Northern Boundary

Illinois' Northern Boundary Marker image. Click for full size.
Photographed By Ed Bartram, March 6, 2022
1. Illinois' Northern Boundary Marker
Inscription.  The northern boundary of Illinois as prescribed in the Ordinance of 1787 was an East and West line from the Southern tip of Lake Michigan at approximately 41° 38', passing through this region to the Mississippi River. When Illinois applied for admission into the Union the bill included this boundary.

While the measure was still pending in the House, Nathaniel Pope, the Illinois Territory delegate in Congress, felt the necessity of giving Illinois a firm footing on the lake, thus committing its interest to Northern commerce through the lakes to offset the influence of Southern trade on the Mississippi and Ohio Rivers in case of future internal conflict. Pope felt that the territorial addition would "afford additional security to the perpetuity of the Union inasmuch as the state would thereby be connected with the states of Indiana, Ohio, Pennsylvania, and New York through the (Great) Lakes."

The amendment introduced by Pope which shifted the boundary approximately 61 miles North to 42° 30' passed easily and the Enabling Act was approved on April 18, 1818. Illinois gained 14 counties covering 8,500 square miles including ports
Illinois' Northern Boundary Marker image. Click for full size.
Photographed By Ed Bartram, March 6, 2022
2. Illinois' Northern Boundary Marker
Close-up of map on marker
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and such future prosperous cities as Chicago, Rockford, and Freeport. Politically, this additional Northern territory decisively influenced Illinois in favor of national unity and against slavery during the Civil War period, and was important in the nomination of Abraham Lincoln in 1860. Thus Pope's foresight had national repercussions as well as significance for Illinois.

Sponsored by Mary Alice Fellers, the City of Yorkville, and the Illinois State Historical Society in celebration of the Illinois Bicentenial, 1818-2018.
Erected 2018 by Illinois State Historical Society.
Topics. This historical marker is listed in these topic lists: Abolition & Underground RRSettlements & SettlersWar, US Civil. A significant historical date for this entry is April 18, 1818.
Location. 41° 38.471′ N, 88° 26.775′ W. Marker is in Yorkville, Illinois, in Kendall County. Marker is on East Van Emmon Street east of South Bridge Street (Illinois Route 47), on the right when traveling east. Touch for map. Marker is at or near this postal address: 102 E Van Emmon St, Yorkville IL 60560, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within 11 miles of this marker, measured as the crow flies. Yorkville Congregational Church (approx. 0.4 miles away); Plano Stone Church (approx. 4.8 miles away); Former U.S. Post Office (approx.
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10.4 miles away); Aurora Public Library (approx. 10.4 miles away); BPO Elk's Club Building (approx. 10.4 miles away); Old Second National Bank (approx. 10.4 miles away); Grand Army of the Republic Memorial Hall (approx. 10½ miles away); Dedicated in Memory of Our Fathers (approx. 10½ miles away).
Credits. This page was last revised on March 8, 2022. It was originally submitted on March 7, 2022, by Ed Bartram of Oswego, Illinois. This page has been viewed 131 times since then and 23 times this year. Photos:   1, 2. submitted on March 7, 2022, by Ed Bartram of Oswego, Illinois. • Bernard Fisher was the editor who published this page.

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Mar. 31, 2023