They had zero inventions.
I hope you are being WONDERFULLY ironic...
...I will post later to see if you are....
That's right. To say they made a "stunning mathematical breakthrough" is ludicrous. It's like saying that Prada or Gucci, or any of those catwalk airheads, mathematically understand their designs. It's laughable. They paint lines on cloth -- or rock -- as the case may be.
I heard somewhere that all the Arab nations combined in the last 20 years had been granted fewer industrial patents than South Korea had in one recent single year. Seems to me like a reasonably good dipstick into the Arab world. Anybody have more recent data?