The article does not really resolve the ambiguity with 2000s which usually means 2000-2009, not 2000-2099.
That said, in Finnish language people never count centuries. It's always "2000-luku" and "1900-luku", not 21th and 20th.
That said, in Finnish language people never count centuries. It's always "2000-luku" and "1900-luku", not 21th and 20th.
I think it wouldn't be wrong to say "the 1800s decade" or "the primus 2000s" or "the alpha 1900s"