Answer:
Constitution is the answer
I know in 1940 three businessmen Martin Bromley, Irving Bromberg, and James Humpert created Sega. kirby- Hal Laboratory
Clara Barton’s work during the civil war led to the formation of the Red Cross
It was primarily the Industrial Revolution that caused the nations cities to grow in population at the end of the nineteenth century, since this brought about the creation of a massive amount of factories, all of which required large number of laborers who almost all lived in the cities.