It is 250 years since America's Mason-Dixon Line was completed. Hailed as a groundbreaking technical achievement, it came to symbolise the border between the Civil War North and South, separating ...

William Ecenbarger is author of “Walkin’ the Line,” a travel-history book about the Mason-Dixon Line. This year marks the 250th anniversary of the completion of the Mason-Dixon Line, one of ...

The extended Mason-Dixon Line, combined with the Ohio River, was used as the boundary between the southern slave-owning states and the north, where the practice of slavery was outlawed.

How Did Mason and Dixon Draw the Line? It was meticulous and painstaking work at that time, as the men used the stars as guidance to trace north and arc lines of latitude along the new ...

The spot came to be known as “the Post mark’d West” — from which “the Mason-Dixon Line would extend due west and east,” ANB says, from Lord Baltimore’s Delaware territory to Savage ...

Mason-Dixon Line expert David Thaler says the map produced at the end of the five-year survey is one of America's most important documents. He described it as being equivalent to the Declaration ...

Even now, along today's Maryland/Pennsylvania line, you can still see some of the old mile markers of the Mason-Dixon line, great 500lb slabs of limestone shipped from England.

It is 250 years since America's Mason-Dixon Line was completed. Hailed as a groundbreaking technical achievement, it came to symbolise the border between the Civil War North and South, separating ...

The Mason-Dixon Line is 250 years old - but who were the two British men who created one of America's most famous land borders?