Woodblock printing enabled Buddhists to get certain principles of Buddhism accross on the wooden tables which enabled for faster spreading of buddhism. With this, buddhism eventually grew into one of the major world religions as we know them today.
Great Britain, the USSR, and France.
Language helped the Islamic empire to unite under the Abbasid Dynasty, which was the Arabic Language. It was easier to communicate and understand each other by speaking one language and having one religion (belief.) The correct answer is (c.) Arabic Language.
