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A tertiary source is an index or textual consolidation of already published primary and secondary sources [6] that does not provide additional interpretations or analysis of the sources. [ 7 ] [ 8 ] Some tertiary sources can be used as an aid to find key (seminal) sources, key terms, general common knowledge [ 9 ] and established mainstream ...
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 ...
Historians use other types of sources to understand history as well. Secondary sources are written accounts of history based upon the evidence from primary sources. These are sources which, usually, are accounts, works, or research that analyse, assimilate, evaluate, interpret, and/or synthesize primary sources.
Publication dates, for both older and recent sources, should be written with the goal of helping the reader find the publication and, once found, confirm that the correct publication has been located. For example, if the publication date bears a date in the Julian calendar, it should not be converted to the Gregorian calendar.
Primary sources are firsthand written accounts made at the time of an event by someone who was present. They have been described as those sources closest to the origin of the information or idea under study. [1] [3] These types of sources have been said to provide researchers with "direct, unmediated information about the object of study."
The same source may contain both primary and secondary material, so if this becomes an issue, it is important to be able to understand the differences. For example, a peer-reviewed medical journal article typically has four major parts. An introduction, a description of the methods used for the study, the results of the study, and a conclusion.
A self-published source can be independent, authoritative, high-quality, accurate, fact-checked, and expert-approved. Self-published sources can be reliable, and they can be used (but not for third-party claims about living people). Sometimes, a self-published source is even the best possible source or among the best sources. For example: