The event that ultimately led to World War I was the assassination of Franz Ferdinand and this led to war across Europe.
<h3>What is World War I?</h3>
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It should be noted that World War I simply means the first world war that occured between 1914 and 1918. The event that ultimately led to World War I was the assassination of Franz Ferdinand.
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That depends what you mean by early, do you mean the civilizations of Egypt or Mesopotamia or Israel.
Explanation:
How did America's industrial revolution and the factory system change family life and women's social and economic roles? ... They had more freedom to make their own decisions, and were separated from the system that had originally controlled them.
The declare independence from Great Britain