Paris Meridian Totally Explained

Everything about The Paris Meridian totally explained

The Paris Meridian is a meridian line running through the Paris Observatory in Paris, France -- now longitude 2°20′14.025″ east. It was a long-standing rival to Greenwich as the prime meridian of the world, as was the Antwerp meridian in Flanders.

Origin

In the year 1634, France ruled by Louis XIII and Cardinal Richelieu decided that Ferro's meridian should be used as the reference on maps, since this island is the most western position of the Old World. It was also thought to be exactly 20 degrees west of Paris. Indeed the exact position of Ferro was never considered to be one of the best.
   A French astronomer, Abbé Jean Picard, measured the length of a degree of longitude and computed from it the size of the Earth during 1669-1670. In 1666, Louis XIV of France had authorized the building of an observatory in Paris to measure longitude. On Midsummer's Day 1667, members of the Academy of Sciences traced the future building's outline on a plot outside town near the Port Royal abbey, with Picard's meridian exactly bisecting the site north-south. French cartographers would use it as their prime meridian for more than 200 years.
   Old maps (outside of Anglo-America) often have a common grid with Paris degrees at the top and Ferro degrees offset by 20 at the bottom. Louis Feuillée also worked on this problem in 1724. It was later found that the actual island of El Hierro itself is in fact 20° 23' 9" west of Paris, but the Ferro meridian was still defined as 20 degrees west of Paris.
   In the early 1800s, the Paris Meridian was recalculated with greater precision by the astronomer François Arago, whose name now appears on the plaques or medallions tracing the route of the meridian through Paris (see below).
   In 1884, at the International Meridian Conference in Washington DC, the Greenwich Meridian was adopted as the prime meridian of the world. France abstained. The French clung to the Paris Meridian as a rival to Greenwich until 1911 for timekeeping purposes and 1914 for navigation. To this day, French cartographers continue to indicate the Paris Meridian on some maps.

The Arago medallions

In 1994 the Arago Association and the city of Paris commissioned a Dutch conceptual artist, Jan Dibbets, to create a memorial to Arago. Dibbets came up with the idea of setting 135 bronze medallions (although interestingly only 121 are documented in the official guide to the medallions) into the ground along the Paris Meridian between the northern and southern limits of Paris: a total distance of 9.2 kilometres / 5.7 miles. Each medallion is 12 cm in diameter and marked with the name ARAGO plus N and S pointers.
Another project, the so-called Green Meridian ('An 2000 — La Méridienne Verte'), aims to establish a plantation of trees along the entire length of the meridian in France. Several missing Arago medallions appear to have been replaced with the newer 'An 2000 — La Méridienne Verte' markers.

Esoteric interpretations

In certain circles, some kind of occult or esoteric significance is ascribed to the Paris Meridian; sometimes it's even perceived as a sinister axis. Dominique Stezepfandts, a French conspiracy theorist, attacks the Arago medallions that supposedly trace the route of "an occult geographical line"; to him the Paris Meridian is a "Masonic axis" or even "the heart of the Devil." Henry Lincoln, in his book The Holy Place, argues that various ancient structures are aligned according to the Paris Meridian. They even include medieval churches, built long before the meridian was established according to conventional history, and Lincoln finds it obvious that the meridian "was based upon the 'cromlech intersect division line'." David Wood, in his book Genisis, likewise ascribes a deeper significance to the Paris Meridian and takes it into account when trying to decipher the geometry of the myth-encrusted village of Rennes-le-Château: The meridian passes about 350 meters (yards) west of the site of the so-called "Poussin tomb," an important location in the legends and esoteric theories relating to that place. (A skeptical discussion of these theories, including the supposed "alignments," can be found in Bill Putnam and Edwin Wood's book The Treasure of Rennes-le-Château - A mystery solved.) Dan Brown, in his novel The Da Vinci Code, refers to the Rose Line, presented as "the world's first prime meridian" (p. 106). Brown's novel confuses the Paris Meridian with a local meridian found in the Parisian church of Saint-Sulpice, marked in the floor with a brass line (the Paris Meridian actually passes about 100 meters east of it). At the climax of the novel, the protagonist follows the line of Arago medallions to the Louvre museum, where (according to the book) the Paris Meridian passes beneath the so-called Inverted Pyramid in an underground mall in front of the museum. Following the tradition of esoteric interpretations of this meridian, the novel hints that this is the final resting place of the Holy Grail. The fact that the meridian passes near the Inverted Pyramid is also noted in the book Le guide du Paris maçonnique by Raphäel Aurillac, who likewise ascribes some deeper, esoteric significance to this. (See: La Pyramide Inversée.)
In the Louvre area, the meridian line marked by the Arago medallions actually runs through the museum and the great courtyard at a spot considerably to the east of the Inverted Pyramid. The medallions in the museum are behind ticketed access points, while the Inverted Pyramid is located in a public mall next to the museum.

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