The work of the laboratory culminated in several atomic devices , one of which was used in the first nuclear test near Alamogordo , New Mexico , codenamed " Trinity " , on July 16 , 1945 . The other two were weapons , " Little Boy " and " Fat Man " , which were used in the attacks on Hiroshima and Nagasaki . The Laboratory received the Army-Navy ‘ E ’ Award for Excellence in production on October 16 , 1945
Trinity
Trinity (nuclear test)
Los Alamos National Laboratory