Hittites were in no way connected with the other inhabitants of Palestine and Syria. Their closest kin were the Phrygians (today Armenians) who also migrated to Asia Minor from the Macedonian Peninsula in the 1st millennium BCE. It is generally accepted that the Hittites also migrated across the Hellespont and Bosporus straights into Anatolia from somewhere to the north. The time of their arrival is also uncertain, although to allow time for the linguistic differentiation between the sister languages Hittite, Luwian, and Palaic it has been suggested by comparative linguistics that these first Indo-European Aryan groups were in Anatolia by around 2300 BCE. They were the first to break away from the big family of Рroto-Indo-Europeans, also known as Pelasgians, Hyperboreans, Danubian or Aegean - Central Balkan civilization , Old Europe, etc.