Manifest Destiny is the belief that the US would one day expand across the whole American continent. So, with that in mind, it effected minorities because they were being pushed out of their lands as the US acquired the new territories.
Unless I'm mistaken it was to establish a Japan empire and in the few years that followed Japan started becoming more and more friendly with the Reich and because they were both fascist counties and had the same goals of a larger empire, and more resources. Again i might be wrong please correct me if so.
Thomas Jefferson passed away on July 4th, 1826. Also, on July 4th, 1776, the Declaration of Independence was passed in which Jefferson was a founding father of.