It is a primary source because the letters are an immediate, first-hand account of the topic (war).
On June 21, 1788, the Constitution became the official framework of the government of the United States of America when New Hampshire became the ninth of 13 states to ratify it. The journey to ratification, however, was a long and arduous process.
One reason why English immigration to the colonies dropped dramatically after 1660 was because "<span>c. The English economy improved and political and religious conflict diminished," since this had been a major motivation for much of the colonial emigration leading up to this point. </span>
It warned Roosevelt that Germany was developing an atomic bomb and encouraged him to start a nuclear program in the US that later became the Manhattan Project
