This is the 6755th most frequent Korean word.
이란의
"Of Iran" or "Iran's."
"이란의" in this sentence is used as a possessive descriptor indicating something related to Iran, specifically its culture.
이란의 문화는 매우 다양합니다.
The culture of Iran is very diverse.
"이란의" is here used as a possessive form describing traditional music originating in Iran.
나는 이란의 전통 음악을 듣는 것을 좋아합니다.
I like listening to traditional music of Iran.
"이란의" functions as a possessive to relate the noun 'history' to Iran, signifying Iran's history.