Template:Organizations (dis)established in year category header/doc

 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.
 * Category:Organizations established in 1791 ✅
 * Category:Organizations disestablished in 1968 ✅

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


 * Category:Religious organizations established in 1864 ❌
 * Category:Scientific organizations established in 1953 ❌
 * Category:Sports organizations disestablished in 2007 ❌

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

Usage
No parameters needed.