Answer: Colleges changed because slavery ended.
Explanation: Slavery ended on September 22, 1862. Because of this, African-Americans were allowed to start attending colleges.
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World War I, also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918
Answer:
The State of Illinois is located in the East-North-Central (Midwest and Great Lakes) region of the United States. Illinois is bordered by the state of Indiana in the east; by Kentucky in the southeast; by Missouri in the west; by Iowa in the northwest and by Wisconsin in the north
1. La calzada romana
uso:destacaban la movilización de grandes ejércitos con una rapidez nunca vista
Hormigón
uso:permitió que los edificios construidos no estuvieran solamente hechos de piedras apiladas y mortero.