Quote from the same website:
"
A few paintings and engravings of the french artist Jean-Léon Gérôme (who stayed in Egypt in the 18 th century) show sword dancers balancing an sabre on their head. Sword dancing - in arabic called Raqs al Saïf - is widely spread in Turkey, the Middle East as well as Pakistan-India (remember the sword dance in the movie Qurbani?) and Iran (Shamshir-bazi)."
Well, there's proof for you. A few paintings and a movie!

How can you not be satisfied with that?
Here's one I found by said orientalist painter:
