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Description
In year 2005, the Struve Geodetic Arc was added to the UNESCO World Heritage List. Astronomer and geodesist Friedrich Georg Wilhelm Struve measured the arc with aim to determine the size and shape of the Earth. Measurements stretching from the Arctic Ocean to the shores of the Black Sea were made from 1816 till 1855. Today 34 authentic points of The Struve Geodetic Arc are located in ten countries and one of them also in Jēkabpils City. It was measured and established in 1826.
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