The name Persia derives from Parsa, the title of the Indo-European nomadic those who migrated into southern Iran—to a region then called Persis—about one thousand bce. The 1st penned reference to your Parsa occurs during the annals of Shalmaneser II, an Assyrian king, who reigned in the ninth century bce. https://israelnfsgs.blogozz.com/35764493/siamese-for-dummies