This hidden category deliberately ignores the MOS:CIRCA guideline to use "c." in articles, the MOS:DASH guideline for year ranges, or both. The category should not be moved.

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Administrators: Please do not delete this category as empty! This category may be empty occasionally or even most of the time.

This category contains articles with Old Persian-language text. The primary purpose of these categories is to facilitate manual or automated checking of text in other languages.

This category should only be added with the {{ Lang}} family of templates, never explicitly.

For example {{ Lang| peo|text in Old Persian (ca. 600-400 B.C.) language here}}, which wraps the text with <span lang="peo">. Also available is {{ Lang-peo|text in Old Persian (ca. 600-400 B.C.) language here}} which displays as Old Persian: text in Old Persian (ca. 600-400 B.C.) language here.