Indo-Aryan migration
The family is named after the Karasuk culture, which existed in Central Asia during the Bronze Age in second millennium BCE. Van Driem postulates the Burusho people took part in the Indo-Aryan migration out of Central Asia and into the northern part of the Indian sub-continent, while other Karasuk peoples migrated northwards to become the Yeniseians. These claims have been picked up by anthropologist and linguist Roger Blench (1999).