If you are a Fin in Poland and a lot into nerd stuff, in Polish language some words are spelled with letters "h" and some with "ch" - where both have the same pronouciation now, but supposedly 150 years ago there was a difference.

Supposedly in Finish language you retained this difference and it can be heard in some words e.g. "raha" ("money" in Finish?).

Personally I never "heard" it - sounded as a regular "h" sound for me.