Answer:
It broke apart
Explanation:
Starting in 1989, the USSR started to suffer from extreme political instability. This was due to restrictions on censorship and the economy. Around this period is when the SSRss, (Soviet Socialist Republics, essentially states) started to break away. This culminated in 1991 when the entire Union collapsed and it became a Democracy.
Foreign Invasion. A series of foreign invasions affected Mughal Empire very badly. Attacks by Nadir Shah and Ahmad Shah Abdali, which were themselves the consequences of the weakness of the Empire, drained the Empire of its wealth, ruined its trade and industry in the North, and almost destroyed its military power.
Mesopotamian Sumerians were very important to the Sumerian culture.
