The document provides information about key people, events, inventions, documents, and political movements in United States history from the colonial period through the early 19th century. It does this through a question and answer format where it asks "What am I?" or "Who am I?" and provides the answer in the form of a person, event, invention, document, or movement. Some of the topics covered include the American Revolution, founding documents like the Declaration of Independence, early presidents, inventors, political parties, westward expansion, and social movements like abolition and women's suffrage.