Who was assassinated which ultimately Led to start if WW1

World War 1 started when Archduke Franz Ferdinand of Austria was assassinated on June 28, 1914

Explanation:

wealthy plebeians became part of the roman nobility. however, despite changes in the laws, the patricians always held a majority of the wealth and power in ancient rome. a third social class in roman society was the slaves. around one third of the people living in rome were slaves.

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first paragraph (and busy all the night ,with a silence deep and white )