SQL or the Structured Query Language, first appeared in 1974. The two blokes credited with writing it, Donald D. Chamberlin and Raymond F. Boyce got that remit so right that it stands today as a tower of software genius. It has been around for 42 years and is still the undisputed defacto standard for managing a relational data store. 42 years and counting! In the software industry that is eternal.
One of the precious few good things to ever come out of IBM, it went ANSI in 1986, 30 years ago and since then has only seen minor revisions. Of course there are issues, forgetting to specifically define the date, time and datetime standards arguably being one, but forgivable considering the enormity of the gift. Since 1986 there have been many diversions from the definition by many different vendors but the core is largely unchanged.
To Don and Ray, Thankyou.