A database language fORDEC-10' s, used internally by Tymshare, Inc.. MAGNUM was designed in the late 1970' s by Dale JORdan, Rich Strauss and Dave McQuoid ORiginally, and was written in BLISS-10. It was the wORld' s first commercial relational database. It was in the process of being written in 1976. (1995-01-25)