So a systems programming language, 13 years younger than COBOL, or 10 years, given that the work in C started in 1969.
http://cm.bell-labs.co/who/dmr/chist.html
> C came into being in the years 1969-1973, in parallel with the early development of the Unix operating system; the most creative period occurred during 1972. Another spate of changes peaked between 1977 and 1979
But lets make you a favour and consider 1972, it makes C a 48 years old systems programming language, only surpassed by NEWP (1961) as oldest systems programming language still in use in 2021.
Maybe it is about time to start talking about C the same way people talk about COBOL.