19:2619:26, 29 January 2012diffhist+2
Arab Spring
"resulting in the fall of its government" > "Their". In fact, all the governments of the countries referred to have fallen.
17:4917:49, 14 January 2011diffhist0
Al-Zahrawi
Muslim empire > there was no Muslim empire in the history, but Islamic countries; Usually called "Islamic World"