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A primary source can have all of these qualities, and a secondary source may have none of them. Deciding whether primary, secondary or tertiary sources are appropriate on any given occasion is a matter of good editorial judgment and common sense, not merely mindless, knee-jerk reactions to classification of a source as "primary" or "secondary".
These are archival data, secondary sources, running records, and recollections. The archival data, or primary sources, are typically the resources that researchers rely most heavily on. Archival data includes official documents and other items that would be found in archives, museums, etc. Secondary sources are the works of other historians who ...
Examples in which a source can be both primary and secondary include an obituary [23] or a survey of several volumes of a journal counting the frequency of articles on a certain topic. [23] Whether a source is regarded as primary or secondary in a given context may change, depending upon the present state of knowledge within the field. [24]
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 science on a
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 analyze, assimilate, evaluate, interpret, and/or synthesize primary sources. These are not as authoritative and are supplemental documents concerning the subject under consideration.
For the purposes of Wikipedia policies and guidelines, primary, secondary and tertiary sources are defined as follows: [1] [2] Primary sources are very close to an event, often accounts written by people who are directly involved, offering an insider's view of an event, a period of history, a work of art, a political decision, and so on.
Sources of information are commonly categorized as primary, secondary, or tertiary sources.In brief, a primary source is one close to the event with firsthand knowledge (for example, an eyewitness); a secondary source is at least one step removed (for example, a book about an event written by someone not involved in it); and a tertiary source is an encyclopaedia or textbook that provides a ...
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.