I also left out Perl, which may be losing mindshare, but is definitely not dead, Ruby, C#, and so on. I chose these languages because they occurred to me as be

I also left out Perl, which may be losing mindshare, but is definitely not dead, Ruby, C#, and so on. I chose these languages because they occurred to me as being relatively old and relatively common, but I won't argue that there aren't any other languages that could be on the list.