Answer: The major causes of World War II were numerous. They include the impact of the Treaty of Versailles following WWI, the worldwide economic depression, failure of appeasement, the rise of militarism in Germany and Japan, and the failure of the League of Nations.
The answer is oral.
These were passed down through stories made by wise men or elders of a
village or tribe from generation to generation.
It was probably a strict process as each successor knew the history of
his clan for he was a source of knowledge to those around him.
