This is the 2892nd most frequent Polish word.
medali
"Medali" is the plural form of "medal" in Polish, meaning "medals" in English.
In this sentence, 'medali' is the genitive plural form of 'medal', used to indicate possession or association.
Zdobyłem trzy medali na zawodach.
I won three medals at the competition.
In this case, 'medali' is also in the genitive plural form, fitting with the possessive use to describe the history of the medals.
Historia medali olimpijskich jest bardzo ciekawa.
The history of Olympic medals is very interesting.
Here, 'medali' is used in the genitive plural form, as it follows the word 'piękne' (beautiful) that modifies plural nouns in the genitive case.