Conversation so far:
Are there any other interesting aspects about this Illyrians article?
Modern scholarship is unable to refer to the Illyrians as a unique and compact people and agrees that they were a sum of ill-defined communities without common origins.
What scholarship says that the Illyrians did not share common origins?
Modern scholarship
Did modern scholarship on the Illyrians influence anything?
Older Pan-Illyrian theories are now generally dismissed by scholars, based as they were on racialistic notions of Nordicism and Aryanism.

Question: Where did they orginate?
Self-contained rewrite: Where did the Illyrians orginate?