Algol 68 had a loop where pretty much any part was optional, so both "TO 10" and "FOR i TO 10" (if you needed a loop variable) were possible. (Back when Go cam

Algol 68 had a loop where pretty much any part was optional, so both "TO 10" and "FOR i TO 10" (if you needed a loop variable) were possible. (Back when Go came out, there were some Algol 68 comparisons, IIRC)