How did most Europeans become aware of the culture of China?

What was one step that charlemagne took to unite his kingdom? a. he chose a single strong heir to inherit his throne. b. he drove muslim forces out of europe. c. he created and supported schools. d. he declared himself head of the catholic church.

According to the aztec history, how did the aztecs know where to build their new city of tenochtitlan? why was this a good location?

What is the legal and political process involved in forming a new municipal corporation