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Persian is an Iranian language belonging to the Indo-Iranian branch of the Indo-European family of languages. In general, Iranian languages are known from three periods, usually referred to as Old, Middle, and New (Modern) periods.
The terms âPersianâ and âIranianâ are often used interchangeably, and many people argue that they are synonyms; others, however, draw a distinction to the effect that to be Persian is a claim to a certain ethnicity, while to be Iranian is a claim to a particular nationality.