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Political Science at Webster University Library

Department of History, Politics, and International Relations (HPIR)

Primary and secondary sources

What is a primary source? 

A primary source is a first-hand account or other evidence coming directly from an event. This might include letters, legal documents, speeches, diaries, interviews, data, and even video or audio recordings. 

What is a secondary source? 

A secondary source is one that someone has created by engaging with the primary sources. Scholarly articles, nonfiction books, newspaper articles, and other interpretations are secondary sources. 

How do I find a primary source? 

Each situation will be different, but you may consider: 

  • Looking for materials written by a person that you're writing about, or by others that witnessed the events
  • Looking for legal documents when appropriate.
  • Searching for interviews with people connected to the events that you address in your paper 
  • Checking the bibliographies of secondary sources to see if they contain primary sources
  • Searching online collections of archives or museums related to your topic, or reaching out to museum professionals if documents are not available online. 

Primary Source Databases

eBooks on Primary Sources

Places to Find Primary Sources

Below is a list of additional official websites that offer free access to online collections of primary resources.