explain one difference between the economic development Portugal and the economic development of China in the period c. 1450-c. 1750

the name of the theory is landmass theory.

muhammad (pbuh) was the messenger of allah (swt) his mission was to praise the name of his lord and the words of his lord thats where the qur'an comes in

polisit can also mean a body of citizens. in modern historiography, polis is normally used to indicate the ancient greek city-states, like classical athens and its contemporaries, and thus is often translated as "city-state". the body of citizens came to be the most important meaning of the term polis in ancient greece.