Generally, open source refers to a computer program in which the source code is available to the general public for use or modification from its original design. Open-source code is meant to be a collaborative effort, where programmers improve upon the source code and share the changes within the community.
African Americans on U.S. Currency. It is a little known fact that five African Americans have had their signatures on currency. The four African American men whose signatures appeared on the currency were Blanche K. Bruce, Judson W. Lyons, William T. Vernon and James C. Napier.
James Madison. James Madison, Jr. (March 16, 1751 â June 28, 1836) was an American politician and political philosopher who served as the fourth President of the United States (1809â1817) and is considered one of the Founding Fathers of the United States. He was the principal author of the US Constitution, and is often called the âFather of the Constitutionâ.