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.
Fourth Amendment to the Constitution of the united states. Also fun fact it is one of the amendments included in what we call the Bill of Rights.
Mainly through better advancement in technology and our understanding of engineering. What with us going from living in caves to making wooden homes to now living in steel and concrete.
C. first battle in which American Indians fought outside of the Indian Territory