Answer:
Some Americans supported imperialism from a moral rather than an economic opinion. They saw much of the world as living in dark- ness. It was the duty of the United States, in their view, to bring the light of freedom and Christianity to those dark places.
Cotton Gin was a technological development that led to an increased demand for slaves in the United States during the early - mid 1800's. The cotton gin made it easier to separate seeds from the cotton - making it faster to pick cotton!
History is the narrative of the events of the past, tell us about our world in different times and help us to understand how the world get to what is now.
Could you post a picture of it