Did you know... 

that deleting references is against Wikipedia's policies? In the al-Biruni page you deliberately deleted my reference to al-Biruni being an Arab, so you could keep mentioning he's Persian. http://en.wikipedia.org/w/index.php?title=Al-Biruni&diff;=41464919&oldid;=41457729 I'll put the reference again, if you delete it, then I'll contact an admin. Wikipedia is a source of information, not a place where you spread your propaganda.