Many of their great scientists were not Arabs either. They were Assyrians.
http://www.ninevehsoft.com/fiorina.htm
http://www.christiansofiraq.com/assyriancontributionstotheislamiccivilization.htm
http://www.aina.org/news/20150906033156.htm
http://www.aina.org/books/hgsptta.htm
Many of the stories coming from the 19th century about the importance of “Arab” science are myths:
http://www.aina.org/articles/greek2.htm
I thought that most of the great “Arab” scientists and scholars (Avicenna, etc) were actually Persians.