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This wall painting found in the Roman city of Pompeii is an example of a primary source about people in Pompeii in Roman times (portrait of Terentius Neo).. In the study of history as an academic discipline, a primary source (also called an original source) is an artifact, document, diary, manuscript, autobiography, recording, or any other source of information that was created at the time ...
So while a dictionary is an example of a tertiary source, an ancient dictionary is actually a primary source—for the meanings of words in the ancient world. There are no quaternary sources: Either the source is primary, or it describes, comments on, or analyzes primary sources (in which case, it is secondary), or it relies heavily or entirely ...
Primary sources present information or data, such as: archeological artifacts. photographs. historical documents such as a diary, census, video or transcript of surveillance, a public hearing, trial, or interviews. tabulated results of surveys or questionnaires. written or recorded records of laboratory assays or observations.
Secondary sources may draw on primary sources and other secondary sources to create a general overview; or to make analytic or synthetic claims. [3] [4] Tertiary sources are publications such as encyclopedias or other compendia that sum up secondary and primary sources. For example, Wikipedia itself is a tertiary source.
For example, a paper reviewing existing research, a review article, monograph, or textbook is often better than a primary research paper. When relying on primary sources, extreme caution is advised. Wikipedians should never interpret the content of primary sources for themselves (see Wikipedia:No original research and Wikipedia:Neutral point of ...
This includes published accounts, published works, or published research. For example, a history book drawing upon diary and newspaper records. Tertiary sources are compilations based upon primary and secondary sources. [1] [8] [3] These are sources which, on average, do not fall into the above two levels. They consist of generalized research ...
Primary energy (PE) is the energy found in nature that has not been subjected to any human engineered conversion process. It encompasses energy contained in raw fuels and other forms of energy, including waste, received as input to a system. Primary energy can be non-renewable or renewable. Total primary energy supply (TPES) is the sum of ...
Sampling of university-based sources that address the question: "A newspaper article is a primary source if it reports events, but a secondary source if it analyses and comments on those events." "Characteristically, primary sources are contemporary to the events and people described [e.g., like a newspaper article on a current event]...