Template:Birth year and age/doc

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Usage

The templates {{Birth year and age}} and {{Death year and age}} return a person's year of birth or death and his or her approximate age. The templates are useful when only the year, or year and month, of a person's birth and/or death are known, or if it is desired not to state a person's full dates of birth and death for privacy reasons.

Such an approximation differs from the approximation generated by {{Birth based on age as of date}}; the latter can be used when the only detail available about someone's birth is a reference that establishes his or her age as of a certain date (such as the date that the reference was published).

The examples on this page use the current date as
20 July 2018

The person's age is estimated as follows:

{{Birth year and age}}

Let us assume:

  1. that the person in question was born some time in 1963; and
  2. that the present date is 20 July 2018.
  • If the person was born after 20 July 1963 then she will be 54 years old on 20 July 2018 as she has not had her 55th birthday yet. On the other hand, if she was born exactly on or before 20 July 1963, then she will be 55 years old.
Therefore, the template {{Birth year and age|1963}}
displays her birth year and age as: 1963 (age 54–55)
  • Optionally, if we know the person's birth month but not the day, we can also have the template display the month.
Let us assume that the person was born in June 1963. Therefore:
  • If it is presently January 2018, then this year the person has not had her birthday yet. Therefore, the template {{Birth year and age|1963|6}} displays her birth year and age as: 1963 (age 54).
  • If it is presently June 2018, we do not know whether the person has had her birthday this year yet since her day of birth is unknown. Therefore, the template displays her birth year and age as: 1963 (age 54–55).
  • If it is presently December 2018, then this year the person has already had her birthday. Therefore, the template displays her birth year and age as: 1963 (age 55).

{{Death year and age}}

Let us assume:

  1. that the person in question was born some time in 1967; and
  2. that he died some time in 2017.
  • We can posit as two extremes: (1) that the person was born on 31 December 1967 and died on 1 January 2017, in which case he would have been 49 years old at the time of his death as he did not achieve his 50th birthday on 31 December 2017; and (2) that he was born on 1 January 1967 and died on 31 December 2017, in which case he would have been 50 years old at the time of his death as he had his 50th birthday on 1 January 2017.
Therefore, the template {{Death year and age|2017|1967}}
renders his death year and age as: 2017 (aged 49–50)
  • Optionally, if we know month of the person's death but not the day, we can also have the template display the month.
Using the above examples and assuming the month is 07 (July)
Therefore, the template {{Death year and age|2017|1967|07}}
displays his death year and age as: July 2017 (aged 49–50)

If you wish to set out the full dates of birth and/or death of a person and thus to calculate his or her age accurately, please use the templates {{Birth date and age}} and {{Death date and age}}.

Note: Do not use this template inside the Wikipedia:Persondata template as it can interfere with data extraction.

Syntax

{{Birth year and age|year of birth}}
{{Birth year and age|year of birth|optional month of birth}}
{{Death year and age|year of death|year of birth}}
{{Death year and age|year of death|year of birth|optional month of death}}

Examples

Template text Result
{{Birth year and age|1963}} 1963 (age 54–55)
{{Birth year and age|1963|07}} July 1963 (age 54–55)
{{Death year and age|2017|1967}} 2017 (aged 49–50)
{{Death year and age|2017|1967|07}} July 2017 (aged 49–50)
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