Determine whether this nonfiction book would be a good source for a student to use in an assignment about the American Revolution. Be sure to explain how you used validity, credibility, and corroboration by other sources to make your decision. A student wants to use the following excerpt from the nonfiction book The Fight for Independence, written by Bailey Kingobi, a professor of American history, in 2016. Professor Kingobi has written other books and articles about early American history. After reading the excerpt, the student finds similar information in several other books and articles. Excerpt Though the Revolutionary War was fought for only eight years, from 1775 to 1783, its impact on global history lasted much longer. The war was caused by political and philosophical differences between the American colonies and Great Britain. Because of the war, a new country with a new approach to government — democracy — was formed. The new United States of America would serve as a source of inspiration to other nations fighting for life, liberty, and the pursuit of happiness.