Valentia Coastline

Title

Valentia Coastline

Artist

Rob Hemphill

Medium

Photograph - Photography

Description

This view towards the Valentia Island Lighthouse, Co. Kerry in Ireland is from the extraordinary Tetrapod Trackway nearby. This tiny island off the Kerry coast has a rich history in so many ways.

Valentia was the eastern terminus of the first commercially viable transatlantic telegraph cable. After subsequent failures of cables landed at Knightstown in 1858 and Foilhommerum Bay in 1865, the vast endeavor finally resulted in commercially viable transatlantic telegraph communications from Foilhommerum Bay to Heart's Content, Newfoundland in 1866. Transatlantic telegraph cables operated from Valentia Island for one hundred years, ending with Western Union International terminating its cable operations in 1966.

Prior to the transatlantic telegraph, American longitude measurements had a 2,800-foot (850 m) uncertainty with respect to European longitudes. Because of the importance of accurate longitudes to safe navigation, the U.S. Coast Survey mounted a longitude expedition in 1866 to link longitudes in the United States accurately to the Royal Observatory in Greenwich. Benjamin Gould and his partner A. T. Mosman reached Valentia on 2 October 1866. They built a temporary longitude observatory beside the Foilhommerum Cable Station to support synchronized longitude observations with Heart's Content, Newfoundland. After many rainy and cloudy days, the first transatlantic longitude signals were exchanged between Foilhommerum and Heart's Content on October 24, 1866.

Saturday, May 21st 1927, Charles A. Lindbergh, on his solo flight from New York to Paris make his first landfall in Europe over Dingle Bay and Valentia island. On the 1927 Mercator chart used by the famous pilot, it was labeled Valencia.

In 1993 an undergraduate geology student discovered fossilised tetrapod trackways, footprints preserved in Devonian rocks, on the north coast of the island at Dohilla (51°55′51″N 10°20′38″W). About 385 million years ago, a primitive vertebrate passed near a river margin in the sub-equatorial river basin that is now southwestern Ireland and left prints in the damp sand. The prints were preserved by silt and sand overlying them, and were converted to rock over geological time. The Valentia Island trackways are among the oldest signs of vertebrate life on land.

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May 29th, 2020

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