A databaSe language for DEC-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)