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THE MASON AND DIXON LINE
The Mason and Dixon Line is the southern boundary line of Pennsylvania and the northern boundaries of Delaware, Maryland and West Virginia - formerly Virginia.

The boundaries separating Pennsylvania and Maryland were in dispute when the original territories were founded.

The issue was finally resolved in 1763 when two English surveyors, with approval from the English Parliament, Charles Mason and Jeremiah Dixon, mapped the line.

Virginia still disputed the line until 1784 when it was moved slightly westward changing the boundaries of Maryland and Virginia - or what is now West Virginia.

Before the Civil War, the Mason and Dixon Line served as the boundary separating slavery and free territories - the North being free. Today the line still serves as a symbolic divider between North and South in both a political and social representation.