My Perl experience only goes back as far as 5.6.1, you'll need merlyn or one of the others with the Knowledge of the Ancients (sorry, too much Stargate :), for the answer to your question. I pretty sure that P4 had hashes, but I don;t even know when that came into being.
I do know that REXX had associative arrays way back in 1987. That was my first encounter with them, and I remember thinking that the were bloody nearly magical before I read up on hashing and hashing algorithms.
Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail
"Memory, processor, disk in that order on the hardware side. Algorithm, algorithm, algorithm on the code side." - tachyon
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