Sources

artifact, document, diary, manuscript, autobiography, a recording, or other source of information that was created at the time under study

thumb|xkcd webcomic titled "[[Wikipedian Protester". The sign says: "".]] A citation is a reference to a source. More precisely, a citation is an abbreviated alphanumeric expression embedded in the body of an intellectual work that denotes an entry in the bibliographic references section of the work, for the purpose of acknowledging the relevance of the works of others to the topic of discussion at the spot where the citation appears.

texts, objects or facts from which knowledge of the past can be obtained

document that discusses information originally presented elsewhere

process of evaluating an information source

index or textual consolidation of primary and secondary sources

text (sometimes oral) from which information or ideas are derived. In translation, a source text is the original text that is to be translated into another language

sources about Jesus as historical character