Modula-2 happened way before my time but was quite taken by it. Especially it's fibres/coroutine features.
The first compiler I ever bought with my own money was a Modula-2 compiler for my Atari ST I picked up second hand for something like $100 CAD, which was a lot back in the late 80s for a teenager.
Was a mistake not to just do C, though. The Atari ST's whole OS environment was built with C void pointers and duck typing in mind.
Apparently the Russian Glonass satellites are programmed in Modula-2 [1] which seems like a wild choice.
1) https://en.wikipedia.org/wiki/Modula-2#Russian_radionavigati...