Perls 1-4 are even older (Perl 1 was 1987). Perl 5 really is just another version number of Perl, not a new language entirely like Perl 6.
Oftentimes what matters is exposure more than when something was invented. Erlang and Haskell came out in 1986 and 1990, respectively, but they're newer to most people than Perl is. Ruby and Python didn't have the exposure in 1995 and 1991 that Perl had.
(Interesting thought experiment--are there any obscure programming langauges today that will be all the rage in 2020, or has the internet accelerated that process?)
Actually, having worked with Perl during the Perl 4 to Perl 5 transition, I'd argue that it was almost as large as the C to C++ transition, though not as big as the Perl 5 to Perl 6 transition. Perl 5 dramatically expanded the options for expressing ideas in the language, while remaining largely syntactically upwards compatible (the Perl transition retained more compatibility with the previous version than did the C/C++ transition).
Perl 5 added lexically scoped variables ("my"), in addition to Perl 4's dynamicly scoped variables ("local"). Perl 5 added references, which is what made OO Perl possible (either "traditional" blessed hash references, or Moose, or any of the less popular alternatives, like "inside-out" objects).
I suspect the programming language rage of 2020 is currently some highschool kid's pet project (or some elementary school kid's daydream?) which no one else has seen yet.
Oftentimes what matters is exposure more than when something was invented. Erlang and Haskell came out in 1986 and 1990, respectively, but they're newer to most people than Perl is. Ruby and Python didn't have the exposure in 1995 and 1991 that Perl had.
(Interesting thought experiment--are there any obscure programming langauges today that will be all the rage in 2020, or has the internet accelerated that process?)