From Alfred Jodocus Kwak Wiki
Birth, death and age templates
birth, death, age
Birth templates Description / use {{ Birth date }} To display a birth date and related hidden metadata. {{ Birth date text }} {{ 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 date and age in years and days }} {{Birth date and age}} , but with the age displayed in years and days rather than just years.{{ 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 as of dates }} To display approximate birth year and current age given several particular dates (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.
age only
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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