 Another extant fragment from the Neolithic was found in Fayum, at a site dated to about 5000 BCE.This fragment is woven at about 12 threads by 9 threads per centimetre in a plain weave.Flax was the predominant fibre in Egypt at this time (3600 BCE) and had continued popularity in the Nile Valley, though wool became the primary fibre used in other cultures around 2000 BCE.