Educational magazines
- Later Twentieth Century and Early Twenty-First Century
- Lexington, Concord, and the Organization of Colonial Resistance
- Literature and the Arts in the Revolutionary Era
- Literature of the Great War
- Lord Dunmore
- Manfred von Richthofen
- Manila Bay and Assembling the U.S. Army
- Manuscripts of Leonardo da Vinci (1469–1518)
- Martin, Joseph Plumb
- Máximo Gómez y Báez
- McCauley, Mary ("Molly Pitcher")
- McCrea, Jane
- Murray, Judith Sargent
- Mustafa Kemal Atatürk
- NASA Life Science Data Archive (1961–)
- Native Americans and Blacks in the American Revolution
- Navajo Code Talkers, The
- Nicholas Trist
- Nineteenth Century
- Notes from the Battlefronts