Pierre de Coubertin is who this is, ask me anymore questions if needed.
Movies were often used as political propaganda. For example, during world war 2, movies shown were either about the war or were actual scenes from the war using footage by people on the war fronts. This was done to improve morale and inspire people to join the effort. The movies would be about monstrosities by the enemies and about war heroes of the allies and the people would join the fight and want to help.
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In 1860 the NYC population was almost 1,068,000
The reasons as to why Irish citizens immigrated was to escape religious and political persecution. The Irish Potato Famine was another reason for this because potatoes were the staple food at the time which forced peasants to leave Ireland.