The Gaya Confederacy originated, as legend tells it, from a collection of folktales and accounts from Korean history (Provok, 2020).
The Gaya Confederacy has many different names because of the transcription of Chinese characters from Korean (Provok, 2020).
This river was infused with riches that benefited the Kingdom with an entry to the sea, iron deposits and abundant plains.
The economy was based around this river with fishing, agriculture and trade of ironworks with weaponry (Kim, 2006).
The Gaya–Silla War were a series of conflicts between the ancient Korean Kingdom of Silla and the Gaya confederacy.
In 88 AD, Silla built two forts named Gaso (가소성, 加召城), and Madu (마두성, 馬頭城), to guard against the encroachment of the Kingdom of Baekje and the Gaya confederacy, respectively.
These, together with U-si and Kueo-ch’il, which has been added the year before Pasa's accession, constituted a considerable increase in the territory of the Kingdom of Silla.