sentences:  The Anatolian languages, including Hittite, split off before 4000 BCE, and migrated into Anatolia at around 2000 BCE.Around 4000 BCE, the proto-Indo-European community split into Greek-Armenian-Indo-Iranians, Celto-Italo-Tocharians, and Balto-Slavo-Germanics.At around 3000–2500 BCE, Greek moved to the west, while the Indo-Aryans, the Celto-Italo-Tocharians and the Balto-Slavo-Germanics moved east, and then northwards along the eastern slope of the Caspian Sea.