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Mason-Dixon Line

  (mā'sən-dĭk'sən) pronunciation

The boundary between Pennsylvania and Maryland, regarded as the division between free and slave states before the Civil War. It was established between 1763 and 1767 by the British surveyors Charles Mason (1730–1787) and Jeremiah Dixon (died 1777).

 

 
 
US Military Dictionary: Mason-Dixon Line

The boundary between Maryland and Pennsylvania, named after the British astronomers, Charles Mason and Jeremiah Dixon, who conducted the boundary survey in 1763-67. In the 1820 congressional debates over the Missouri Compromise, which determined the area where slavery would be allowed as the United States expanded, the term was first used to denote the line separating the slave states in the South from the free states in the North. Henceforth the name referred not only to the Maryland-Pennsylvania boundary but also to a line along the Ohio River from Pennsylvania to the Mississippi River, then along the east, north, and west boundaries of Missouri, and then west along the 36°30′ parallel.

See the Introduction, Abbreviations and Pronunciation for further details.

 
Britannica Concise Encyclopedia: Mason-Dixon Line

Originally, the boundary between Maryland and Pennsylvania. The 233-mi (375-km) line was surveyed by Charles Mason and Jeremiah Dixon in 1765 – 68 to define the disputed boundaries between the land grants of the Penns, proprietors of Pennsylvania, and the Baltimores, proprietors of Maryland. The term was first used in congressional debates leading to the Missouri Compromise (1820) to describe the dividing line between the slave states to its south and the free-soil states to its north. It is still used as the figurative dividing line between the North and South.

For more information on Mason-Dixon Line, visit Britannica.com.

 
US History Encyclopedia: Mason-Dixon Line

Mason-Dixon Line is the southern boundary line of Pennsylvania, and thereby the northern boundary line of Delaware, Maryland, and West Virginia, formerly part of Virginia. It is best known historically as the dividing line between slavery and free soil in the period of history before the Civil War, but to some extent it has remained the symbolic border line—political, cultural, and social—between North and South.

The present Mason and Dixon line was the final result of several highly involved colonial and state boundary disputes. The first dispute was between Maryland and Pennsylvania. The Maryland Charter of 1632 granted to the Calvert family lands lying north of the Potomac River and "under the fortieth degree of Northerly Latitude." Almost fifty years later (1681), Charles II issued a charter making William Penn proprietor of lands between latitudes 40° N and 43° N and running west from the Delaware River though five degrees in longitude. The terms of the two charters were inconsistent and contradictory. A full century of dispute with regard to the southern boundary of Pennsylvania was the result. Had all Pennsylvania claims been substantiated, Baltimore would have been included in Pennsylvania, and Maryland reduced to a narrow strip. Had all Maryland claims been established, Philadelphia would have been within Maryland.

In 1760, after years of conferences, appeals to the Privy Council, much correspondence, attempted occupation, forced removal of settlers, and temporary agreements, the Maryland and Pennsylvania proprietors reached an agreement to resolve the dispute. Under its terms, two English surveyors, Charles Mason and Jeremiah Dixon, surveyed the boundary line. In 1767, after four years' work, Mason and Dixon located the boundary line between Maryland and Pennsylvania at 39° 44' north latitude. The crown ratified the results in 1769.

In the meantime Virginia claimed most of what is now southwestern Pennsylvania. Both colonies tried to exercise jurisdiction in the area, which led to conflicts in 1774 and 1775. That dispute ended when joint commissioners of the two states agreed to extend the Mason and Dixon line westward, a settlement not completed until 1784. Historically the Mason-Dixon line embodies a Pennsylvania boundary triumph.

Bibliography

Buck, Solon J., and Elizabeth H. Buck, The Planting of Civilization in Western Pennsylvania. Pittsburgh, Pa.: University of Pittsburgh Press, 1939.

Danson, Edwin. Drawing the Line: How Mason and Dixon Surveyed the Most Famous Border in America. New York: John Wiley, 2001.

Gray, Richard J. Writing the South: Ideas of an American Region. New York: Cambridge University Press, 1986.

Illick, Joseph E. Colonial Pennsylvania: A History. New York: Scribners, 1976.

Morrison, Charles. The Western Boundary of Maryland. Parson, W. Va.: McClain Print Co., 1976.

 
Columbia Encyclopedia: Mason-Dixon Line,
boundary between Pennsylvania and Maryland (running between lat. 39°43′26.3″N and lat. 39°43′17.6″N), surveyed by the English team of Charles Mason, a mathematician and astronomer, and Jeremiah Dixon, a mathematician and land surveyor, between 1763 and 1767. The ambiguous description of the boundaries in the Maryland and Pennsylvania charters led to a protracted disagreement between the proprietors of the two colonies, the Penns of Pennsylvania and the Calverts of Maryland. The dispute was submitted to the English court of chancery in 1735. A compromise between two families in 1760 resulted in the appointment of Mason and Dixon. By 1767 the surveyors had run their line 244 mi (393 km) west from the Delaware border, every fifth milestone bearing the Penn and Calvert arms. The survey was completed to the western limit of Maryland in 1773; in 1779 the line was extended to mark the southern boundary of Pennsylvania with Virginia (present-day West Virginia). Before the Civil War the term “Mason-Dixon Line” popularly designated the boundary dividing the slave states from the free states, and it is still used to distinguish the South from the North.

Bibliography

See study by E. Danson (2001).

 
Geography: Mason-Dixon line

Part of the boundary between Pennsylvania and Maryland established by the English surveyors Charles Mason and Jeremiah Dixon in the 1760s. The line resolved disputes caused by unclear description of the boundaries in the Maryland and Pennsylvania charters.

  • Though the line did not actually divide North and South, it became the symbolic division between free states and slave states. Today, it still stands for the boundary between northern and southern states.

 
History Dictionary: Mason-Dixon line

A boundary line between Pennsylvania and Maryland, laid out by two English surveyors, Charles Mason and Jeremiah Dixon, in the 1760s. Before and during the Civil War, the line was symbolic of the division between slaveholding and free states. After the war, it remained symbolic of the division between states that required racial segregation and those that did not.

 
Wikipedia: Mason-Dixon line
For the polling company, see Mason-Dixon Polling & Research Inc..
For the fictional character, see Mason Dixon (Rocky Balboa character).
For the novel by Thomas Pynchon, see Mason & Dixon.
The original Mason-Dixon Line
Enlarge
The original Mason-Dixon Line

The Mason–Dixon Line (or "Mason and Dixon's Line") is a demarcation line between four U.S. states, forming part of the borders of Pennsylvania, Maryland, Delaware, and West Virginia (then part of Virginia). It was surveyed between 1763 and 1767 by Charles Mason and Jeremiah Dixon in the resolution of a border dispute between British colonies in Colonial America. Popular speech, especially since the Missouri compromise of 1820 (apparently the first official usage of the term "Mason's and Dixon's Line"), uses the Mason-Dixon line symbolically as a cultural boundary between the Northern United States and the Southern United States (Dixie).[citation needed]

Maryland and Pennsylvania both claimed the land between the 39th and 40th parallels according to the charters granted to each colony. The 'Three Lower Counties' (Delaware) along Delaware Bay moved into the Penn sphere of settlement, and later became the Delaware Colony, a satellite of Pennsylvania.

In 1732 the proprietory governor of Maryland, Charles Calvert, 5th Baron Baltimore, signed an agreement with William Penn's sons which drew a line somewhere in between, and also renounced the Calvert claim to Delaware. But later Lord Baltimore claimed that the document he signed did not contain the terms he had agreed to, and refused to put the agreement into effect. Beginning in the mid-1730s, violence erupted between settlers claiming various loyalties to Maryland and Pennsylvania. The border conflict between Pennsylvania and Maryland would be known as Cresap's War.

The issue was unresolved until the Crown intervened in 1760, ordering Frederick Calvert, 6th Baron Baltimore to accept the 1732 agreement. As part of the settlement, the Penns and Calverts commissioned the English team of Charles Mason and Jeremiah Dixon to survey the newly established boundaries between the Province of Pennsylvania, the Province of Maryland, Delaware Colony and parts of Colony and Old Dominion of Virginia.

After Pennsylvania abolished slavery in 1781, the western part of this line and the Ohio River became a border between free and slave states, although Delaware remained a slave state.

Geography

Diagram of the survey lines creating the Mason-Dixon Line and "The Wedge."
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Diagram of the survey lines creating the Mason-Dixon Line and "The Wedge."

Mason and Dixon's actual survey line began to the south of Philadelphia, Pennsylvania, and extended from a benchmark east to the Delaware River and west to what was then the boundary with western Virginia.

The surveyors also fixed the boundary between Delaware and Pennsylvania and the approximately north–south portion of the boundary between Delaware and Maryland. Most of the Delaware–Pennsylvania boundary is a circular arc, and the Delaware–Maryland boundary does not run truly north-south because it was intended to bisect the Delmarva Peninsula rather than follow a meridian.

The Maryland–Pennsylvania boundary is an east-west line with an approximate mean latitude of N 39º 43' 20" (Datum WGS 84). In reality, the east-west Mason-Dixon line is not a true line in the geometric sense, but is instead a series of many adjoining lines, following a path between latitude N 39º 43' 15" and N 39º 43' 23". As such, the line approximates a segment of a small circle upon the surface of the (also approximately) spherical Earth. An observer standing on such a line and viewing its path toward an unobstructed horizon, would perceive it to bend away from his line of sight, an effect of the inequality between the amount of curvature to his left and right. Among parallels of latitude, only the Equator is a great circle and would not exhibit this effect.

The surveyors also extended the boundary line to run between Pennsylvania and colonial western Virginia, which became West Virginia after the American Civil War, though this was contrary to their original charter; this extension of the line was only confirmed later (see Yohogania County for details).

The Mason–Dixon Line was marked by stones every mile and ”crownstones” every five miles. The stone was shipped from England. The Maryland side says (M) and the Delaware and Pennsylvania sides say (P). Crownstones include the two coats-of-arms. Today, while a number of the original stones are missing or buried, many are still visible, resting on public land and protected by iron cages.

Mason and Dixon confirmed earlier survey work which delineated Delaware's southern boundary from the Atlantic Ocean to the ”Middle Point” stone. They proceeded nearly due north from this to the Pennsylvania border.

Later the line was marked in places by additional benchmarks and survey markers. The lines have been resurveyed several times over the centuries without substantive changes to Mason and Dixon's work. The stones may be a few to a few hundred feet east or west of the point Mason and Dixon thought they were; in any event, the line drawn from stone to stone forms the legal boundary.

According to Dave Doyle at the National Geodetic Survey, part of NOAA, the corner of PA-MD-DE at The Wedge is Boundary Monument #87. The marker ”MDP Corner” dates from 1935 and is offset on purpose.

Doyle said the Maryland–Pennsylvania Mason–Dixon Line is exactly:

39° 43′ 19.92216″ N

and Boundary Monument #87 is on that parallel, at:

075° 47′ 18.93851″ W.

Visitors to the tripoint are strongly encouraged to first obtain permission from the nearest landowner.

History

A "crownstone" boundary monument on the Mason-Dixon Line. The coat of arms of Maryland's founding Calvert family is shown. On the other side are the arms of William Penn.
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A "crownstone" boundary monument on the Mason-Dixon Line. The coat of arms of Maryland's founding Calvert family is shown. On the other side are the arms of William Penn.

The line was established to end a boundary dispute between the British colonies of Maryland and Pennsylvania/Delaware. Due to incorrect maps and confusing legal descriptions, the royal charters of the three colonies overlapped. Maryland was granted the territory north of the Potomac River/Watkins Point up to the fortieth parallel; Pennsylvania was granted land extending northward from a point "12 miles north of New Castle Towne," which is located below the fortieth parallel. The most serious problem was that the Maryland claim would put Philadelphia, which became the major city in Pennsylvania, within Maryland. A protracted legal dispute between the Calvert family, which controlled Maryland, and the Penn family, which controlled Pennsylvania and the "Three Lower Counties" (Delaware), was ended by the 1750 ruling that the boundary should be fixed as follows:

  • Between Pennsylvania and Maryland:
    • The parallel (latitude line) fifteen miles south of the southernmost point in Philadelphia, measured to be at about 39° 43' N and agreed upon as the Maryland–Pennsylvania line.
  • Between Delaware and Maryland:
    • The existing east-west Transpeninsular Line from the Atlantic Ocean to its mid-point to the Chesapeake Bay.
    • A Twelve Mile (radius) Circle around the city of New Castle, Delaware.
    • A "Tangent Line" connecting the mid-point of the Transpeninsular Line to the western side of the Twelve-Mile Circle.
    • A "North Line" along the meridian (line of longitude) from the tangent point to the Maryland Pennsylvania border.
    • Should any land within the Twelve-Mile Circle fall west of the North Line, it would remain part of Delaware. (This was indeed the case, and this border is the "Arc Line.")

The disputants engaged an expert British team, astronomer Charles Mason and surveyor Jeremiah Dixon, to survey what became known as the Mason–Dixon Line.

The Mason–Dixon line is made up of four segments corresponding to the terms of the settlement: Tangent Line, North Line, Arc Line, and 39° 43' N parallel. The most difficult task was fixing the Tangent Line, as they had to confirm the accuracy of the Transpeninsular Line mid-point and the Twelve-Mile Circle, determine the tangent point along the circle, then actually survey and monument the border. They then surveyed the North and Arc Lines. They did this work between 1763 and 1767. This actually left a small wedge of land in dispute between Delaware and Pennsylvania until 1921.

In April 1765 Mason and Dixon began their survey of the more famous Maryland-Pennsylvania line. They were commissioned to run it for a distance of five degrees of longitude west from the Delaware River, fixing the western boundary of Pennsylvania (see the entry for Yohogania County). However, in October 1767 at Dunkard Creek near Mount Morris, Pennsylvania, nearly 244 miles (392 km) west of the Delaware, a group of Native Americans forced them to quit their progress. In 1784, surveyors David Rittenhouse and Andrew Ellicott and their crew completed the survey of the Mason-Dixon line to the southwest corner of Pennsylvania, five degrees from the Delaware River. Other surveyors continued west to the Ohio River. The section of the line between the southwestern corner of Pennsylvania and the river is the county line between Marshall and Wetzel counties, West Virginia.

The boundary between Pennsylvania and Maryland was resurveyed in 1849, then again in 1900.

The Missouri Compromise of 1820 created the political conditions which made the Mason-Dixon Line important to the history of slavery. It was during the Congressional debates leading up to the compromise that the term "Mason-Dixon line" was first used to designate the entire boundary between free states and slave states.

On November 14, 1963, during the bicentennial of the Mason–Dixon Line, U.S. President John F. Kennedy opened a newly completed section of Interstate 95 where it crossed the Maryland-Delaware border. It was his last public appearance before the one 8 days later in Dallas, Texas, where he was assassinated. The Delaware Turnpike and the Maryland portion of the new road were each later designated as the John F. Kennedy Memorial Highway.

As a cultural boundary

Modern definition The states in dark red are almost always included in modern day definitions of the South, while those in medium red are usually included. The striped states are sometimes/occasionally considered Southern. Note that the Mason-Dixon line forms part of the northern boundary of the striped states[1][2]
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Modern definition The states in dark red are almost always included in modern day definitions of the South, while those in medium red are usually included. The striped states are sometimes/occasionally considered Southern. Note that the Mason-Dixon line forms part of the northern boundary of the striped states[1][2]

The Mason-Dixon line became symbolic of the division between the "free states" and "slave states" from the Missouri Compromise until the end of the American Civil War. Pennsylvania abolished slavery early while Maryland, Delaware, Kentucky, and Missouri remained slave states until the end of the war.

After the Civil War, the line continued to be thought of as a cultural boundary, which is imagined as continuing westward from Pennsylvania down the Ohio River to the Mississippi River, and crossing the Mississippi to place Arkansas, Louisiana and Texas south of the line. Debate respectfully proceeds as to whether border states such as Missouri, Kentucky, Maryland and West Virginia belong on the north or south side of this boundary line.[citation needed]

Cultural references

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Literature
Film
  • The animated short film "Southern Fried Rabbit" (released May 2, 1953) features Bugs Bunny and Yosemite Sam and takes place on the Mason-Dixon Line — literally, on it. The cartoon depicts the north as being barren and empty, while the south is lush and green.
  • In the film Pulp Fiction (first released on October 14, 1994), Butch Coolidge (Bruce Willis) and Marcellus Wallace (Ving Rhames) are captured and imprisoned in "The Mason-Dixon Pawnshop".
  • Antonio Tarver plays a character in the 2006 movie Rocky Balboa named Mason "The Line" Dixon.
  • In the children's film Little Big League, the announcer rambles off unimportant facts, mentioning that the Angels have been the best team this year away "north of the Mason-Dixon line".
Television
Music
  • The Johnny Cash tune "Hey Porter" has the singer asking the railroad how long it will be until the train crosses the Mason-Dixon Line, as he is longing to be back in the South.
  • The popular song "Are You From Dixie?" written by Jack Yellen and George L. Cobb in 1915 and recorded by many country artists over the years, including the Blue Sky Boys in the 1930s and Jerry Reed more recently, references some states south of the Mason-Dixon-Line.
  • The musical group Virginia Coalition have a song titled "Mason-Dixon" that makes reference to the historical line.
  • The satirist Tom Lehrer mentions the Mason-Dixon line in the song "I Wanna Go Back to Dixie"
  • The song "Southern Girl" by Maze contains the lyrics: "...below the Mason-Dixon line / down there where the girls are fine / Sure know how to treat me you just make me feel so good / Southern girl here's to you no one can do it like you do."
  • The Country band Lady Antebellum have a song called "Mason Dixon Line" that references the line in the lyrics: "...Mama said home is where the heart is / Just south of the Mason Dixon Line..."
  • Christian metalcore band Norma Jean, at one of their live performances, dedicated their song "Memphis Will Be Laid To Waste" to "everyone south of the Mason-Dixon line...and everyone north of it too."
  • The song "Guillotine (Swordz)" from the album "Only built 4 Cuban linx" By the artist Raekwon of the Wu Tang Clan features the closing lines "the Land of the Lost/ Notorious henchman from the North/ Strikin niggaz where the Mason-Dixon line crossed."

References

  1. ^ David Williamson. UNC-CH surveys reveal where the ‘real’ South lies. Retrieved on 22 Feb, 2007.
  2. ^ http://www.pfly.net/misc/GeographicMorphology.jpg

External links

Books

  • Danson, Edwin. Drawing the Line: How Mason and Dixon Surveyed the Most Famous Border in America. Wiley. ISBN 0-471-38502-6.

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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.  Read more
US Military Dictionary. The Oxford Essential Dictionary of the U.S. Military. Copyright © 2001, 2002 by Oxford University Press, Inc. All rights reserved.  Read more
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Geography. The New Dictionary of Cultural Literacy, Third Edition Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin. All rights reserved.  Read more
History Dictionary. The New Dictionary of Cultural Literacy, Third Edition Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin. All rights reserved.  Read more
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