Some scholars believe, for example, that the earliest mention of the Armenians is in the Akkadian inscriptions dating to the 28th-27th centuries BC, in which the Armenians are referred to as the sons of Haya, after the regional god of the Armenian Highlands. (see: Artak Movsisyan, Hnaguyn Petut’yunĕ Hayastanum–Aratta (Yerevan: Depi yerkir 1992) 41.)
Many experts say that the Armenians started as a mixture of the different peoples to move through the area in history: The Hurrians, Urarteans, Luvians and Mushki. This last group, also knowns as Phrygians may have brought their Indo-European language to Armenia. The Armenian language today is Indo-European, but shows a lot of influence from the earlier languages, especially Urartean. (“Armenians” in Encyclopedia of Indo-European Culture or EIEC, edited by J. P. Mallory and Douglas Q. Adams, published in 1997 by Fitzroy Dearborn.)
Many hypothesis's regarding the Indo-European homeland are around Armenia, Greece, and the Caucasus. The Armenian Hypothesis which places Armenia as the Indo-European homeland is accepted by many Russian and Georgian historians specialized in European and Caucasus history and who are known for there contributions to history in the Caucasus and Armenia.
*Armenia: Cradle of Civilization by David Marshall Lang
*Martiros Kavoukjian, Armenia, Subartu, and Sumer
*T. V. Gamkrelidze and V. V. Ivanov, The Early History of Indo-European Languages, Scientific American, March 1990
*I.M. Diakonoff, The Prehistory of the Armenian People (1984).