It would be "Patrick Henry" who was not a Federalists, since Patrick Henry was in fact opposed to the ratification of the Constitution, which made him an "Anti-Federalist".
They were looking for wealth.
They made many political allies.
They sought a new route to Asia.
They brought Spain great wealth.
They attracted a great deal of interest in Spain.
Answer:
I think the letter was about the first atomic bomb.
Explanation:
''The Einstein–Szilárd letter was a letter written by Leó Szilárd and signed by Albert Einstein that was sent to the United States President Franklin D. Roosevelt on August 2, 1939. ... It prompted action by Roosevelt, which eventually resulted in the Manhattan Project developing the first atomic bombs.''
got the explanation from wikipedia, hope this helps.