World War 1 started when Archduke Franz Ferdinand of <u>Austria</u> was assassinated on June 28, 1914. This was the immediate cause but there were a series of events which triggered the war. See below for more information and facts about how <u>World War 1</u> started.
To be honest there could be many qualified answers to this question. With that being said I believe the cause was due to the difference in policies. Militarism, Alliances, Imperialism and Nationalism were all scatter around the globe and quickly problems arises from those.
They first appeared in Mesopotamia in 1900 but later they migrated into Egypt in around 1500 BC.
Hebrew was believed to be the soldiers of God.
As Hebrew migrated into Egypt after some period of origination in Mesopotamia hence they are originally from Mesopotamia though they settled themselves in Egypt in around 1500 BC.