4 ms·

a surprising number of languages contain embedded interpreters for it. Mostly Lisps. Also, Smalltalks (seriously).

• qwertyuiop924 10y ago
  Really? I can't say I'm entirely shocked, but still...
• jhbadger 10y ago
  Yes, my first exposure to Prolog was the toy version included with Smalltalk/V in the late 1980s.