This article is not entirely correct. Please read comments below. Also keep in mind that as "pattern" I mean visual design not weaving technique - how it looks and how it was done are two completely different matters and require individual research.
With the increasing popularity of historical re-enactment and fantasy-themed events came an accompanying curiosity about ancient crafts. Many now are thinking of how to make things as they were done ages ago. Thankfully the technique of tablet weaving was revived!
Basing on Viking period excavations, archaeologists developed a theory around the use of pierced bone and wooden squares that was confirmed in the Oseberg ship burial and also ethnological research into modern handiwork. It became obvious that the selfsame craft had been preserved in isolated regions of the Caucasus, Algeria, Burma, Slovakia, The Yemen and Anatolia and is exactly the same as had been practiced by Vikings ages ago.