Why did rice become a chinese staple food during the tang dynasty?

According to the document, why can't the pope and the catholic church in rome make decisions for england? use evidence.

The house of burgesses was the first a. act of religious toleration in english history. b. elected representative government in the new world. c. place where businessmen could buy and sell stocks in america. d. puritan equivalent of the house of david.

What is the orthodox interpretation of why the cold war started