The document provides a historical overview of journalism in the United States from the colonial period to modern times. It discusses the development of newspapers from early colonial publications to penny papers that appealed to mass audiences. It also covers the rise of yellow journalism in the late 19th century pioneered by Pulitzer and Hearst, as well as the shift to objective journalism in the 20th century. The document also outlines four theories of the press - authoritarian, libertarian, social responsibility, and communist - and their perspectives on who can access media and what barriers exist.