The updates were new templates, and never updated after the initial Templates that have come out since I last updated? I didn't realize that
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In 1666, Louis XIV of France had authorized the building of the Paris Observatory. The astronomers of the French Academy of Sciences, founded in 1666, managed to clarify the position of El Hierro relative to the meridian of Paris, which gradually supplanted the Ferro meridian. It was also thought to be exactly 20 degrees west of Paris. In the year 1634, France ruled by Louis XIII and Cardinal Richelieu, decided that the Ferro Meridian should be used as the reference on maps, since El Hierro (Ferro) was the most western position of the Ptolemy's world map. Map of the French coast, corrected by the Academy of Sciences in 1682 The determination of the figure of the Earth was a problem of the highest importance in astronomy, inasmuch as the diameter of the Earth was the unit to which all celestial distances had to be referred. Moreover, the French meridian arc was important for geodesy as it was one of the meridian arcs which were measured to determine the figure of the Earth via the arc measurement method. The French meridian arc was important for French cartography, inasmuch as the triangulations of France began with the measurement of the French meridian arc. The "Paris meridian arc" or "French meridian arc" (French: la Méridienne de France) is the name of the meridian arc measured along the Paris meridian. It was a long-standing rival to the Greenwich meridian as the prime meridian of the world. The Paris meridian is a meridian line running through the Paris Observatory in Paris, France – now longitude 2☂0′14.02500″ East. The Paris meridian is traced on the floor. Meridian Room (or Cassini Room) at the Paris Observatory, 61 avenue de l'Observatoire (14th arrondissement). |
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