Primary Sources
Primary sources are original sources upon which other research is often based. It has not been filtered through analysis or evaluation and is fixed in the time period involved. The table below includes types of sources that are often, though not always, primary sources.
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Original Documents |
Creative Works |
Relics or Artifacts |
Original Research |
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Secondary Sources
Secondary sources are often created using primary sources. They typically involve analysis or evaluation of primary sources, typically with the benefit of hindsight or distance from the time period involved. The table below includes types of sources that are often, though not always, secondary sources.
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Secondary Sources |
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Tertiary Sources
Tertiary sources are typically compilations of or collections of primary and secondary sources. Many reference works are considered tertiary sources. The table below includes types of sources that are often, though not always, tertiary sources.
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Tertiary Sources |
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