he was the author of the Declaration of Independence.
Federalism is the distribution of power between a central authority and constituent units, such as the federal government in Washington DC and the states. Article V of the constitution allows for the creation of constitutional amendments via an act of Congress, or by the application of a majority of the states. In this case, both the states and the central authority are able to make necessary changes without the consent of the other.
George Washington was the president that served at the constitutional convention.
The Gentleman's Agreement of 1907 is best described as "The United States would not segregate Japanese immigrants, and Japan would not allow further emigration to the United States." :)