This is the 9182nd most frequent Polish word.
słowenii
"Słowenii" is the locative or genitive case of "Słowenia," meaning "Slovenia" in English.
Here, 'Słowenii' is the locative case, describing a location where the action took place.
Byłem w Słowenii podczas wakacji.
I was in Slovenia during the holidays.
In this sentence, 'Słowenii' is in the genitive case, describing belonging or association with 'historia'.
Historia Słowenii jest fascynująca.
The history of Slovenia is fascinating.
Here, 'Słowenii' is in the genitive case, indicating destination or direction of motion.