Robert Newton Calvert (1945-1988) lead singer, poet and frontman of Hawkwind, who went on to a less successful, but intriguing, separate career. He was believed to have suffered from Manic Depression.
... sailed up it to Albany, discovered Hudson Bay
Alexander von Humboldt, (1769-1859), explored Central and South America, visited Siberia
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Helge Ingstad, (1899-2001), ...