Swedish–Russian Arc-of-Meridian Expedition
= Swedish–Russian Arc-of-Meridian Expedition
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The Swedish–Russian Arc-of-Meridian Expedition (also known as the Great Northern Expedition) was a significant scientific endeavor in the 18th century aimed at measuring a meridian arc—a crucial task for understanding the shape and size of the Earth. Conducted between 1736 and 1743, the expedition was a collaboration between Swedish and Russian scientists and explorers.