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This template calculates a person's approximate birth year based on their age at death. This is useful when a reliable source states only their age at death.
This can also be used when a person is dead and a reliable source states only their age at the time of publication, but their actual death date is not known.
Syntax
{{Birth based on age at death|age|YYYY|MM|DD}}
Example
{{Birth based on age at death|93|1978|09|12}}: 1884/1885{{Birth based on age at death|25|1846|01|04}}: 1820/1821
Supporting template
This template is implemented using {{birth based on age as of date}} with |noage=1.
Birth, death and age templates |
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birth, death, age |
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| Combined BDA template | Description / use | | {{BirthDeathAge}} | Combines functions of {{Birth date}}, {{birth-date}}, {{birth date and age}}, {{birth year and age}}, {{death date}}, {{death-date}}, {{death date and age}}, and {{death year and age}}. |
| Birth templates | Description / use | | {{Birth date}} | To display a birth date and related hidden metadata. | | {{Birth-date}} | | | {{Birth date and age}} | {{Birth date}} with suffix '(age N)'. | | {{Birth date and age2}} | {{Birth date and age}} plus age as of a specified date. | | {{Birth-date and age}} | As {{Birth date and age}}, but accepts dates in text form ('15 June 1950', 'June 15, 1950', 'June 1950', etc). | | {{Birth year and age}} | Year of birth and approximate age. | | {{Birth based on age as of date}} | To display approximate birth year and current age given a particular date (e.g. when a dated reference mentions the age of a person), only works for living people. | | {{Birth based on age at death}} | To display approximate birth year based on age at death, or on age at a specific date if death date isn't known. |
| Death templates | Description / use | | {{Death date}} | To display a death date and related hidden metadata. | | {{Death-date}} | | | {{Death date and age}} | {{Death date}} with suffix '(aged N)'; also called with {{event date and age}}. | | {{Death-date and age}} | As {{Death date and age}}, but accepts dates in text form ('15 June 1950', 'June 15, 1950', 'June 1950', etc). | | {{Death date and given age}} | To display a death date and specified age. | | {{Death year and age}} | To display a year of, and approximate age at death. |
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age only |
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| Reverse-determined age template | Description / use | | {{Age}} | Age based on number of complete years between two dates. | | {{Age nts}} | {{Age}} with output formatted for use in number sortable tables. | | {{Age as of date}} | Current age (in years) from a known age at a specified date. | | {{Age for infant}} | Current age for infant: months and days up to one year, years and months up to three years, and years beyond age 3. |
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Template documentation