Python 1.2 was released in 1995.
The first public release of Java as 1.0 was in 1996.
JavaScript appeared in 1995 as well, but the first ECMAScript standard didn't appear until 1997.
First release of PHP was in 1995, same with Ruby.
Perl pre-dates the initial release of all those languages and was already up to its fifth major version by that time.
Up to you to decide when you think it started, but I'd say the current language we think of as "Perl" started with the release of Perl 5.
Today, objects are used heavily. And furthermore the way we write those classes has changed a lot since Moose and friends became popular. As a result most Perl code bases written in the last dozen years look less like early Perl 5 than early Perl 5 looked like Perl 4.
Perl 4 and Perl 5 are more of a continuum than different languages.
Yes, the memory isolation model of mod_php was the crucial factor in beating the competition. With mod_perl you had to write your Perl modules to a specification so that globals were not accessible by other hosts. That was too much of a risk for shared hosting providers. The situation is muddied, however, in that a lot of shared hosts only allow PHP as a cgi which, in theory, puts it on a level playing-field with Perl. However, in practice, Perl only has one PHP-alike templating framework - HTML::Mason - and that requires mod_perl to perform decently. So PHP's other advantage is that its templating engine is simply faster.
Depending on how you look at it you are at least a decade too late: we Java folks had the Rhino Javascript engine back in the late 1990ies, and it had an interpreted mode since 1998: https://en.wikipedia.org/wiki/Rhino_(JavaScript_engine)
I think it is even mentioned in the Javascript in a Nutshell book by David Flanagan (I haven't read it since then but I studied that book as I wrote a map rendering system in Javascript back in school in 2005.)
Node came out in 2009, and writing server-side JS was still a fringe practice for a couple more years, so 2010 is me being generous to avoid comments on the exact timeline ;) It really picked up mainstream adoption around 2011-2012.
