Unicode support doesn't really seem that uncommon, in the grand scheme. Rosetta Code's wiki has a page for languages that support Unicode variable names[0] and

Unicode support doesn't really seem that uncommon, in the grand scheme. Rosetta Code's wiki has a page for languages that support Unicode variable names[0] and some of them were surprising to me (e.g. AppleScript). Of course, supporting Unicode variable names doesn't mean a language supports Unicode anywhere, but it's a starting point for historical research at least. [0]: https://rosettacode.org/wiki/Unicode_variable_names https://rosettacode.org/wiki/Unicode_variable_names