got some history questions that need to be answered

Humanities

1) Why was China sol long at the center of world power?

2) How did Islam by 1000 C.E. help unite most of the world outside of China and Christian Europe in the Eastern Hemisphere?

3) What were the continuities and contrasts between the development of civilization in the Old World and the New?

here is where this weeks readings are

https://content.umuc.edu/file/fcc26600-d98b-4d89-9…

http://worldhistoryconnected.press.uillinois.edu/2…