Tend to agree that choice of + for string concatenation was a mistake - anyone know the history/first widely used example? Did the original BASIC have it? (I th

Tend to agree that choice of + for string concatenation was a mistake - anyone know the history/first widely used example? Did the original BASIC have it? (I think QuickBasic did, but that's unlikely to be the origin). Edit: found https://retrocomputing.stackexchange.com/questions/20460/what-was-the-first-programming-language-to-use-for-string-concatenation https://retrocomputing.stackexchange.com/questions/20460/wha..., suggests it was ALGOL-68.