It is the major extant text documenting Marshal's life.

The earliest of three extant economic texts is dated to his eighth year.

The only extant text in the language is the following short passage:

The extant text from Heracleon does not answer this question.

In particular, 21-22, 26.2-4, and 39-40 of the work contain factual information not found in any other extant ancient text.

Probably completed between 1112 and 1118, the extant text is present in three manuscripts with two distinct traditions.

The extant text is divided into two parts, comprising 108 and 55 chapters respectively.

There is only one contemporary monumental text extant for this king and another two known from later copies.

Yoshida was the author of the oldest extant Japanese mathematical text.

This is the only extant ancient text which explicitly portrays Jesus as referring to a wife.