Editor's Note: We asked Patrick J. Charles, the author of numerous articles and books on gun control, legal history and the Constitution, to give us an overview of the history of gun rights. Numerous judges have cited his writings on the Second Amendment in their opinions, including the U.S. Supreme Court in the landmark decision McDonald v. City of Chicago. Charles serves as Senior Historian for the U.S. Air Force Special Operations Command and is author of the recent, seminal book Armed in America: A History of Gun Rights from Colonial Militias to Concealed Carry.