User:Ageguessinggames

Commons:Village pump/Archive/2009Dec#Categorizing pictures of people by age

Wikimedia Commons as an age-guessing game

1. Open a random image of a person.
2. Think of what age the person could be of at the image.
3. Check your guess. If none of the image, its description, and its notes tell you the age of the depicted person (that was at the time of the depiction, of course), try finding it out and specifying it yourself.
   • You may use the {{Person in image}} template.
   • If there is only one person in the image, put the age into the image description page.
   • If there are several persons in the image, use ImageAnnotator.
   • Watch out for:
     • similarly named events happening on different dates,
     • incorrectly specified dates.
     • personality rights: generally do not add ages of non-public figures alive or recently deceased, who are not notable enough for a Wikipedia article and did not explicitly agree for their birth date to be published. See also Commons:Photographs of identifiable people.

In-wiki age calculator (for use with Preview, not for saving in image pages):

{{#expr:{{Age in days|19|||||}}/365.2425}}

The result must be rounded to a sane number of places like two or one, because

a period of one day =

{{#expr:{{Age in days|2010|02|05|2010|02|06}}/365.2425}}

≈ 0.0027379070069885 years.