I truly don’t know the answer but I go on safari and look it up LOL
Sunni and shia The division into these two denominations of Islam happened after the death of Prophet Muhammad, when there was contention as to who would be his successor. Some people (Sunnis) believed that only someone who is capable enough should be given this responsibility while others believed that the leadership should stay with only members of Prophet's family(Shias).
Answer:
WW1, Roaring Twenties, Dust Bowl, WW2, Cold War
Explanation: