4 ms·BASIC did as well IIRC.by jimktrains2 10y agoBASIC did as well IIRC.gh02t 10y agoPascal as well I think. I dunno which was the first to support it, but it's not exactly a popular thing in modern programming.int_19h 10y agoIt was already there in Algol-60.FreeFull 10y agoPascal even let you index with non-numeric types, so you could have an array indexed by the characters a to z, for example.