Answer:
They built walls around their cities for protection
Explanation:
Sargon the Great
Around 2,300 BC, the independent city-states of Sumer were conquered by a man called Sargon the Great of Akkad, who had once ruled the city-state of Kish. Sargon was an Akkadian, a Semitic group of desert nomads who eventually settled in Mesopotamia just north of Sumer.
It must be c the sinking of the lusitania
November 11, 1918. World War I Ends. ...
January 30, 1933. Hitler Appointed German Leader. ...
September 1, 1939. World War II Begins. ...
September 17, 1939. Soviet Union Invades Poland. ...
September 27, 1939. Warsaw Captured. ...
December 13, 1939. UK Wins War's First Sea Battle. ...
April 8, 1940. ...
May 10, 1940.
Explanation:Right to Life, Liberty, Personal Security