I only know of two compromises, unless you are talking about the bill of rights. But the great compromise set a two house legislature, which is different from before because the states mostly had power. The three fifths compromise counted three fifths of the slaves as population. Except cool fact they weren’t called slaves they were called others. There was the free men and the others. It affected the country because it added onto the population. And the bill of rights was made to settle the conflict between the anti federalists and the federalists. The bill of rights was written by James Madison.

Tsar Alexander II initiated a series of importantreforms in Russia. During his reign, the country's rail and communication networks were improved, resulting in increased economic activity and the development of banking institutions.
andrew jackson changed the voting rights.