The Wedge

The Wedge is a Delaware historical marker in Newark, New Castle County, dedicated 1932.

New Castle County · dedicated 1932 · 1100 Nottingham Road, Newark

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Created from the difficulty in surveying the twelve-mile circle tangent point and the Tangent Line defined by Charles Mason and Jeremiah Dixon, this land between the State of Maryland and the Delaware curve is a wedge-shaped tract that was claimed by Pennsylvania but governed by Delaware for more than a century. A joint commission appointed in 1889 from both states awarded it to Delaware. This decision was ratified by Pennsylvania in 1897, with Delaware and the United States Congress following suit in 1921.

TodayHistorical map

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David Rumsey Map Collection, Stanford Libraries

Example

under a mile from where William Gabby lived in the 1760s

what this marker records spans 1777 to 1789, overlapping William Gabby's years here

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Source: State of Delaware Historical Markers Program, administered by the Delaware Public Archives.
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The Wedge

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