This is the 408th most frequent Serbian word.
догађаја
The Serbian word "догађаја" means "events" in English.
In this sentence, 'догађају' is in the dative case, singular form, indicating the entity to which the action of attending was directed.
Присуствовао сам врло занимљивом догађају јуче.
I attended a very interesting event yesterday.
Here, 'догађаја' is in the genitive case, singular form, used to describe possession or association of the historic aspect to the event.
Били смо сведоци историјског догађаја.
We were witnesses to a historic event.
In this example, 'догађајима' is in the instrumental case, plural form, indicating the entity with which the action of discussion was associated.