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.
Newbold Plow - cast iron plow by Charles Newbold
The Newbold Plow
The plow evolved from the all-wood designs of antiquity, to the use of iron parts. In 1720, the first English patent for a wooden moldboard sheathed with iron was issued to Joseph Foljambe. From that the evolution to plows made with cast iron moldboards and shares occurred in Scotland in 1785 by James Small. These cast iron plows were then imported to the U.S.
Charles Newbold, born in Chesterfield, NJ (1780), spent his teenage years investigating the use of cast iron to improve on the heavy iron-clad wooden plow then available. He was issued the first US patent for a plow on 26 Jun 1797. The plow was cast as one piece—the moldboard, share, and land-side all cast together—with wooden handles and beam added.
1. 1950 Korean war begins.
2.1954 First nuclear powered submarine launches: USS Nautilus
3. 1958 NASA is formed
4. 1961 JFK becomes president
<span>5. 1963 John F. Kennedy killed in Dallas
Hope this helps! :)</span>
The correct answer to this open question is the following.
Although the question does not include options, we can comment on the following.
A key similarity in the policies of the rulers of African states such as Ethiopia in the period circa 1200–1450 was that some African states were capable to overcome geographical barriers and other internal issues to establish trade and diplomatic relationships with other states in Africa, Asia, and Europe.
In the case of Ethiopia, the ruler of Italy received important Ethiopian diplomats that visited Naples in 1450. The Emperor of Ethiopia was King David, and he sent to Naples a man called Pietro, who notify the King of Italy that Ethiopians professed the Christian religion.
Answer:
patriots which were American were known as loyalists because they stayed loyal and did not leave and switch sides
Explanation:
