Why does Haskell say Nothing instead of None? Didn't occur to them or was rejected? I can see why Some is less than ideal since it rhymes with "sum".
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And I presume Rust far postdates these Haskell decisions. But I still suspect lots of options got discussed.
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Rust borrowed the naming of Option, Some, and None from OCaml and SML. Not sure where Maybe, Just, and Nothing came from - maybe Miranda?
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Hmm, I can't see maybe defined in Miranda's stdenv (cs.kent.ac.uk/people/staff/d), but it might have been a datatype commonly in use? That said, idiomatic Miranda and early Haskell leaned much more on partial functions, so it might have seen less use.
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Another Haskell precursor, Orwell, does not define it in its stdenv either: homepages.inf.ed.ac.uk/wadler/papers/
You might need to go through the early Haskell papers and try to spot where it first appears 🤔
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Thanks much for the digging you've done.
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