Yes. The Great Depression was certainly a threat to American democracy as it opened people to consider the possibility of communism as an alternative system that would solve their problems which included high unemployment and poverty levels resulting from the economic downturn.
I'm thinking it was on September 1783?
Railroads and Turnpikes were primarily constructed for profit.
Observe planetary positions with sufficient accuracy so the Kepler could later use the data to discover the laws of planetary motion.
1. People's diets were less varied since they were now relying on the food that could be grown/foraged in one area
2. Farming required a lot more work to succeed than hunting and gathering
3. Society became less equal because with the new jobs that sprung up after the Agricultural Revolution, came gender roles as well as class distinctions
