Answer:
Checks and balances
Explanation:
Polybius was widely known as a Greek historian. In his analysis of a mixed constitution or the separation of powers in government, he concluded that the strength of Rome's constitutional division of powers is "Check and Balances."
This he explained that the act of spreading power out and giving various offices a particular function, the Romans formed checks and balances that ensured an orderly interdependence by prohibiting government excess and decentralizing power.
 
        
             
        
        
        
Answer:
you gatta add a picture next time my guy, otherwise we can't awnser
Explanation:
so ya , you just gatta take a photo and it should allow you to upload that photo. than we can solve it 
 
        
             
        
        
        
It was the worlds first emoji convention
        
             
        
        
        
Plessy v ferguson!! i think anyways it established the "separate but equal" thing
        
             
        
        
        
Answer:
Bad harvests, warfare, rebellions, overpopulation, economic disasters, and foreign imperialism contributed to the dynasty's collapse. A revolution erupted in October 1911. In 1912 the boy Emperor Xuantong (Hsüan-t'ung, commonly known as Henry Pu Yi) abdicated, or stepped down, from the throne