Early historians didn't have the technology modern historians had. So, they had less resources than more modern historians.
One new development in the way Americans work is the work ethic has improved since modern technology. Modern technology has increased the need for well done work.
Another would be the new amount of jobs. This is because more and more people are getting into computer science and that way there is more jobs for those in America.
The united states where worried that japan would give military support to the european countrys
Write about hot it prevents tyranny and also stops the president from controlling the government. It also makes sure they know their place.