I believe his separation of powers theory was the foundation for the U.S. Constitution. Not sure how long it was included but that's all I know.
Lincoln had to deal with not only the challenge of the South seceeding from the United States, but also the challenge of raising an army from Northern States who didn't want to get into a war.
It included liberals and unionist in its meaning of "un-American". The House Un-American Activities Committee (HUAC) was made in 1938 to examine charged traitorousness and subversive exercises with respect to private natives, open workers, and those associations associated with having Communist ties.
Manhattan Project
the development of the atomic bomb, the best-kept secret of the war, even Truman didn't know about it when he became president; it was called that b/c it was mainly being worked on at Columbia University in Manhattan
hope this helps!
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