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.

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 the dividing line between …

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 represents an …

Sep 30, 2019 · The Mason-Dixon Line established the borders between Pennsylvania and Maryland. It later went on to symbolize the division between freedom and slavery.

Apr 30, 2025 · Although the Mason-Dixon line is most commonly associated with the division between the northern and southern (free and pro-slavery, respectively) states during the 1800s and American …

Sep 2, 2023 · The Mason-Dixon Line resulted from a land dispute that predated the Revolutionary War and symbolized the divide between the North and the South for hundreds of years, to today.

Nov 20, 2025 · Mason and Dixon began their work in 1763 and completed it in 1768, covering nearly 300 miles of difficult terrain. Using the most advanced astronomical and surveying tools of their era, …

In 1760, the families compromised and selected two English astronomers, Charles Mason and Jeremiah Dixon, to survey the common border. In the years between 1763 and 1767, the surveyors ran a line …

The Mason-Dixon Line (or "Mason and Dixon's Line") was surveyed between 1763 and 1767 by Charles Mason and Jeremiah Dixon in the resolution of a border dispute between British colonies in Colonial …

Originally surveyed by Englishmen Charles Mason (1728-86) and Jeremiah Dixon (1733-79), the line separates Pennsylvania from Maryland and West Virginia along the 39º43ˊ N. parallel and bounds …