Jerusalem and Constantinople
Answer:
The political system of Central and Northern Italy was characterized by the city states great fragmentation and spirit of autonomy. This situation constituted an insuperable obstacle to any prospect of national unification and a serious barrier even to the formation of smaller state organizations such as the regional states into which Italy later consolidated.
This factor indeed stood them out.
He is chief executive officer of AMR which became until it merged with with US Airways and became American Airlines. He became chairman of it.
I assume that it is the Yellow River China.
It depends on you as to what you like to do and what you think would be good for the class.