Answer:
Korea and may other states in Asia had a tributary relationship with imperial China. Their rulers were supposed to send annual tributes - gold, jewels, animals, etc. - to the Chinese emperor. China was the center of the Asian system, the highest civilization of all and  its ruler was superior to anybody else, the Son of Heaven did not have equals. It was the practice during the Ming dynasty and later. 
Explanation:
 
        
             
        
        
        
Development of agriculture
growth of permament settlements
domestication of plants and animals
invention of pottery
methalitic architecture
        
             
        
        
        
The Great war was with Ottoman Empire
 
        
             
        
        
        
Reagan's supply-side economics helped boost the U.S economy out of the worst recession since the Great Depression by giving incentives to businesses to grow. This was achieved through the reduction of the top corporate tax rate from 46 percent to 40 percent. Reagan also cut the top marginal income tax rate<span> from 70 percent to 28 percent increased the supply of labor which boosted economic growth.</span>