Since there was a rise of Chinese national spirit at that time, the foreign imports were reduced, but merchants exported many goods and the Ming dynasty was one of the biggest traders in the world, if not the biggest. This period is known as one of the three golden ages of China.
Arab nations of the Organization of Petroleum Exporting Countries (OPEC) imposed an embargo against the United States and its allies as a response to the U.S. decision to provide military support to the Israeli in order to give the Israel a jump start in the post-war peace negotiations.
As a muslim, I can positively say that Islam does have the pre-Islamic Arabian influences, such as loose clothing to prevent the body's curves from showing, not consuming alcohol or eating pork of obtaining animal's blood. However, there are practices that are different. Such as believing in one God, not worshipping any idol, object, or person. Believing God have no children or a wife, neither does he have any family. He is one and only, no one is like him. Not talking to a non-marram, or someone who's not your close family such as cousins, uncles, aunts, husband , or wife. Not taking intrest, since that's not your own earned money. Also praying five times a day and fasting in Ramadan. P,u'd giving as much charity as possible. If you have any other questions, feel free to ask.