The Mason–Dixon line, sometimes referred to as Mason and Dixon's Line, is a demarcation line separating four U.S. states: Pennsylvania, Maryland, Delaware and West Virginia. It was …

Apr 23, 2025 · Mason-Dixon Line, originally the boundary between Maryland and Pennsylvania in the United States. In the pre-Civil War period it was regarded, together with the Ohio River, as …

Aug 5, 2024 · The solid red line represents the Mason-Dixon Line, which was drawn by astronomer Charles Mason, and surveyor Jeremiah Dixon in the 18th century. The dashed line …

Sep 30, 2019 · Mason and Dixon resurveyed the Delaware tangent line and the Newcastle arc and in 1765 began running the east-west line from the tangent point, at approximately 39°43′ …

Aug 9, 2017 · Precisely two and a half centuries ago, two English surveyors — Charles Mason and Jeremiah Dixon — completed work on a boundary line that resolved a long, bitter dispute …

Jan 25, 2024 · In this excerpt from Mason-Dixon, historian Edward G. Gray shows how the Maryland-Pennsylvania boundary—even well before Mason and Dixon had accurately …

This detail of a map of the Southern states by J.H. Colon (1800-93) was created in 1861 and shows a complete view of the Mason-Dixon Line—the long horizontal line and the vertical line …

Jan 16, 2025 · The Mason-Dixon Line is a boundary that was surveyed and marked by Mason and Dixon to resolve a land dispute. It became a dividing line between free states and slave …

In 1766 Mason and Dixon received new instructions to extend the “West Line” east to the Delaware River by the end of the year.; and in 1767 to west survey beyond the Allegheny …

Oct 5, 2016 · Through the first half of the 19th century the Mason-Dixon Line represented the line of freedom for tens of thousands of blacks escaping slavery in the south. The Underground …