I would use two sources of data for income and two for literacy. For average income I would consult the censuses if they were available at that time. In particular I would check the differences between the years 1800 and 1850. Also I would check employment records for the same trades/professions for the two years. For literacy, I would check the school records to see if there was an increase in youth completing high school and also check the university records to see how many graduates there were in the two years.
What is the question for this?
Grazing animals contribute to the nutritional cycle
1. Russia invaded Ukraine.
2. Ukraine does not belong to NATO.
3. Countries in the neighbourhood of Ukraine belong to NATO.
4. American land forces are the best in the world.
5. Countries surrounding Ukraine do not want to have Russia in their surroundings.
6. American land forces will prevent other countries (belonging to NATO) from Russian attack.