A primary source provides direct or firsthand evidence about an event, object, person, or work of art. Primary sources include historical and legal documents, eyewitness accounts, results of experiments, statistical data, pieces of creative writing, audio and video recordings, speeches, and art objects.
Here are examples of original, first-hand, authoritative accounts known as Primary Sources:
http://www.religionfacts.com/big-religion-chart. Great to use with older students who are learning about world religions. This can also be used for research on a particular religion or comparing religions.