This reference contains the United States Constitution (US Constitution), the list of all American Presidents, and one hundred more documents, which were most important for the history of the USA. The Application is OFFLINE and does not need the internet connection.Database will be downloaded when the application is run first time. We recommend you to use Wi-Fi connection. Main features:1. History every article you ever viewed is stored in history.2. Favorites you are able to add articles to favorites list by clicking the star icon.3. Managing History and Favorites lists you are able edit those lists or clear them.4. Various Settings you may change applications font and theme (choose one of several color themes).This app contains advertising.