< Calais, son of Boreas >
1 Origin
Calais was born in 1384 BC near the Rheginia (now Ergene) River in Thracia.
Calais' father was Boreas.
Calais' mother was Orithyia (or Oreithyia), daughter of Erechtheus.
2 Others
2.1 Emigration to the west coast of the Black Sea
In 1365 BC, Zetes and Calais migrated from Thracia to the island of Peuce in the Ister (now Danube) River on the west coast of the Black Sea.
It was the land inhabited by the Hyperboreans, and from there offerings were sent to Delos.
The Hyperborean kings and administrators of the sanctuary were descendants of Boreas.
In other words, Zetes and Calais were the ancestors of the Hyperboreans.
2.2 Offerings to Delos
The Hyperboreans would make an annual offering of first-fruits to Delos.
The first-fruits were likely to have been offered to the Temple of Apollo, which was built in Delos by Erysichthon, the son of Cecrops, the first king of Athens.