Barber, James. Presidents. DK Eyewitness Books. Dorling Kindersley Publishing, Inc., and Smithsonian Institution, 2000, NY, NY.
Davies, Peter, editor. The American Heritage Dictionary of the English Language: paperback edition. Dell Publishing Co., Inc., 1976, NY, NY.
Hart, Michael H. The 100: A Ranking of the Most Influential Persons in History. A Citadel Press Book: Published by Carol Publishing Group, NY, NY, 1992.
Kagan, Neil, editor. National Geographic Concise History of the World: An Illustrated Time Line. National Geographic Society, 2006, Washington, DC.
Margulies, Nancy. Mapping Inner Space Learning. Zephyr Press, Tucson, AZ, 2002.
O’Brien, Dominic. Quantum Memory Power: Learn to Improve Your Memory with the World Memory Champion! (Video series) Nightingale-Conant, 2001, Niles, IL.
Wikipedia for information on every person and event covered.
