"“The discovery of ‘Aryan’ looking names of (Mitanni) princes on cuneiform documents in Akkadian from the second half of the second millennium BC (chiefly tablets from Bogazkoy and El-Amarna), several doubtlessly Aryan words in Kikkuli’s treatise in Hittite on horse training (numerals: aika- ‘one’, tera- ‘three’, panza- ‘five’, satta – ‘seven’, na(ya) – ‘nine’; appellatives: varttana – ‘circuit’, course (in which horses move when being trained),’ aliya – ‘horse’), and, finally, a series of names of Aryan divinities on a Mitanni-Hatti and a Hatti-Mitanni treaty (14th century BC), poses a number of problems that have been reportedly discussed since the beginning of the century.”"