A primary source can be defined as a first-hand account from a time period that you are studying. Primary sources include: Original documents such as diaries, speeches, autobiographies, manuscripts, letters, maps, postcards, interviews, laws, court decisions, treaties, photographs, and newspaper reports. Primary sources can include texts of government documents that have been reprinted into a book or posted on a website. Oral histories, where a person gives their recollection of an era or event, can also be considered a primary source.