sentences:  Proto-Greek would be practically equivalent to Mycenaean Greek from the 17th century BC and closely associate Greek migration to Greece with the Indo-Aryan migration to India at about the same time (the Indo-European expansion at the transition to the Late Bronze Age, including the possibility of Indo-European Kassites).The hypothesis argues for the latest possible date of Proto-Indo-European (without Anatolian), roughly a millennium later than the mainstream Kurgan hypothesis.In this respect, it represents an opposite to the Anatolian hypothesis in spite of the geographical proximity of the respective suggested "Urheimat" by diverging from the timeframe suggested there by approximately 3000 years.