A Greek grammar: accidence

The ancient Greeks were a branch of the great Indo-European or Aryan family of nations comprising the Indian, Persian, Italic, Celtic, Germanic, and Slavonic peoples. Their national name was Hellenes( EXXqves, which was applied to all Greeks of whatever locality, and their country was called Hellas (fEXXa ?).The Romans called them Graeci, whence our name Greeks. The Hellenic race was divided into three main divisions: the Aeolians (AtoAefc), the Dorians (Atwtefr), and the lonians (leaves).
2.At the time of the composition of the Homeric poems, the division into Aeolians, Dorians, and lonians was unknown; nor was there a general name, as Hellenes, for the whole race.