In Finnish language months are written lowercase, but at https://en.wikipedia.org/wiki/Special:Notifications?uselang=fi they are written as "15. Heinäkuuta 2016", when they should be "15. heinäkuuta 2016". When I look at the source code the month looks correct there, so I think there's something that should be fixed in CSS somewhere.
A solution needs to be found that allows capitalization style for each language to be expressed as appropriate.