Template:Birth-date and age/doc
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 | This is a documentation subpage for Template:Birth-date and age. It contains usage information, categories and other content that is not part of the original template page. |
{{Birth-date and age}} displays a person’s birth date and age. Besides calculating the age of the person, the benefit of using this template is to allow for the inclusion of hidden microformat dates, which may be indexed or searched by software tools.
Note: The template may not calculate the age correctly if a full date (month, day, year) is not provided. For example, a person who was born in 1941 could be either 82 or 83, depending on whether they have reached their birthday in the current year:
{{Birth-date and age|1941}}→ 1941 (age 83){{Birth-date and age|November 1941}}→ November 1941 (age 83)
When only the year is known, consider using {{Birth year and age}} instead:
{{Birth year and age|1941}}→ 1941 (age 82–83){{Birth year and age|1941|11}}→ November 1941 (age 82–83)
Usage
- Format
{{Birth-date and age| birth date }}{{Birth-date and age| birth date | wikitext to display in place of 'birth date'. Like the right hand parameter in a wikilink, this could be alternate text, links, templates etc. }}
Examples
Month first format: Sample below displays April 12, 1941 (age 83), with invisible microformat date: 1941-04-12
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Day first format: Sample below displays 12 April 1941 (age 83), with invisible microformat date: 1941-04-12
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Year only, year and month only: Sample below displays 1941 (age 83), with invisible microformat date: 1941
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Demo of ISO date, as well as alternate displays. Sample below displays Twelfth of April, 1941 (age 83), with invisible microformat date: 1941-04-12
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Parameters
{{birth-date and age|birth date|additional parameters}}
| Parameter | Default | ||
|---|---|---|---|
| (required) | 1 | Birth date. May be year only, year and month, year month and day, expressed in natural formats: e.g.: 24 August 1953, 1955-08-25, Sunday, December 7, 1941. If parameter three is not specified, the birth date is displayed in exactly this format. This value as well as parameter 2 may not include links. If links or templates that do not evaluate as recognizable dates are desired, use parameter 2. | – |
| (optional) | 2 | The birth date to display. This may include links or templates, or any combination of them, and overrides parameter 1. | parm 1 |
| (optional) | bce | If birth date is BC, set to "b". | – |
| (optional) | gregorian | If Julian date is used, this parameter is required. The date provided is used for emitting the correct microformat translation of the birth date. | parm 1 |
| (optional) | dt | This value if present is the ISO8601 value emitted to indicate microformat birth date. It overrides any calculated value. | – |
See also