The sex researchersWilliam Howell Masters (1915-2001) and Virginia Eshelman Johnson (1925- ) conducted laboratory observations of and experiments into human sexual behavior during the 1950s and 1960s.
Their most famous publications were Human Sexual Response and Human Sexual Inadequacy.
... it to Albany, discovered Hudson Bay
Alexander von Humboldt, (1769-1859), explored Central and South America, visited Siberia
I
Helge Ingstad, (1899-2001), Norwegian, ...