Which event happened first in world war 2

Which was the original difference between sunnis and shias? a. they disagreed on the content of the five pillars. b. they disagreed on the role of sharia in muslim society. c. they disagreed on the role of imams in the islamic religion. d. they disagreed on who should have succeeded muhammad.

Give one important factor responsible for production of poverty in in kerala

How many countries were represented at the paris negotiations (where the treaty of versailles was signed) in january 1919?