An ongoing reference to exhibits, events, lectures, reenactments, ceremonies, and other tributes commemorating the significance of Lincoln's life and his presidency during this 200th-year anniversary.

Patents as primary sources? These documents can give your students clues to development of U.S. science, technology, business, and social concerns.

George Washington's military career and reputation were not pure successes. His military losses caused some to question his ability to lead a nation.