Prime Meridian. Travel Tips

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Prime Meridian. Travel Tips

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If the equator is the natural baseline for latitude, then there is no equally obvious equivalent for longitude. In the XNUMXnd century A.D. e. Ptolemy orientated his own Prime Meridian the Blessed Isles (as the Canary Islands were then called), which, he believed, were the westernmost point of the inhabited world.

In the Age of Discovery, which followed the discovery of the New World by Columbus in 1492, almost every state used its own prime meridian.

By the nineteenth century, the indisputable leadership of the British Navy in drawing up maps of the World Ocean led to widespread recognition as the starting point for the longitude of the line passing through London, although up to 1881, the French and the Spanish continued to determine the longitude respectively in Paris and Cadiz, in Russia through Pulkovo, at the same time a good dozen other zero meridians were used.

Only in 1884, the participants of the International Conference on Meridians, which met in Washington, decided to universally recognize as the standard of zero longitude "the meridian passing through the axis of the meridian circle of the Greenwich Observatory in London."

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