Marshall Plan – Encyclopedia of U.S. History
Thurgood Marshall – Encyclopedia of U.S. History
Marine Corps – Encyclopedia of U.S. History
March on Washington (1963) – Encyclopedia of U.S. History
Marbury v. Madison – Encyclopedia of U.S. History
Manifest Destiny and Expansionism – Encyclopedia of U.S. History
Manhattan Project – Encyclopedia of U.S. History
Malcolm X – Encyclopedia of U.S. History
Maine (U.S.S.), Sinking of – Encyclopedia of U.S. History
Maine – Encyclopedia of U.S. History