Answer:
Well based on the fact that the very first patented rock crushing machine was made in the year 1830, and the first successful, Eli Whitney Blake's, was in 1858, I'd say the development process was around 30 years.
Answer:
1. Federal Government
2. More power for the States
Explanation:
During the formation of the Constitution in the United States known as the Constitutional Convention, it was revealed that the North generally supported the idea of a stronger FEDERAL GOVERNMENT.
The south, on the other hand, feared Constant interference from the north and wanted "More power for the States."
This is based on the idea that the political elites of the North do not favor slavery which is based on the fact that their economic growth is not based on the exploitation of slavery.
However, the political elites of the South favor slavery simply because their Agricultural based economy thrives best on the exploitation of slavery.
Genoa and Venice became rich with sea trade. Milan showed its wealth and power. Florence was a banking and trading center.
