Does history have to be linear? What are the advantages of thinking about time as being in a straight line? What are the problems with this approach?

The ancient greek city-state of sparta was run as an oligarchy , meaning

What was one major cause of worldwide conflict during the first decade of the 21st century?

In 1975, how did the united nations respond to the worldwide struggle for women's rights? a) issued a declaration of human rights that addressed gender inequality b) held its first international conference on women's status in the world c) wrote a resolution that encouraged nations to solve their own problems d) encouraged women to fight for their rights through rebellion and resistance