Unsteady politics in foreign countries
Answer:
It made them drop out.
Explanation:
The Communists didn't like how Russia was losing WW1 so they were like, "Oh forget it! Imma head out."
The type of society which didn't have a centralized government was called a Pastoral society. So that is your correct answer.
All the other civilizations/societies - the Egyptian one, the Mycenaeans, and the Indus valley civilization - had governments which were centralized and not dispersed to different locations.
Answer:
Haight-Ashbury, San Francisco in 1967
Explanation: