Organizations (dis)established in year category header is used to create categories of the form "Organizations established in YYYY" or "Organizations disestablished in YYYY", where YYYY is a 4-digit year.

e.g.

It is not for use on other types of categories, e.g.

The template creates navigation tables and puts the page into the correct parent categories

{{Orgestcatyear}}

No parameters needed.

{{Orgdiscatyear}}