A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
Joseph Campbell was born in White Plains, New York, on March 26, 1904, the elder son of hosiery importer and wholesaler Charles William Campbell, from Waltham, Massachusetts, and Josephine (née Lynch), from New York.