The term 'Family of Man' is a phrase coined by the photographer Edward Steichen in 1955 for an exhibition of his work at the Museum of Modern Art in New York City. The exhibition featured over 500 photographs from 68 countries, and was intended to show the commonality of humanity across cultures and nations. The crossword solution for this term is 'RACE', which is a reference to the idea that all humans are part of the same family, regardless of their racial or ethnic background.