Template:Amusement park attractions introduced year/doc

 is used to create categories of the form "Amusement park attractions introduced in YYYY", where YYYY is a 4-digit year.

e.g.
 * Category:Amusement park attractions introduced in 1994 ✅

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


 * Category:Amusement park attractions that closed in 1993 ❌
 * Category:Amusement rides introduced in 2007 ❌

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

Usage
No parameters needed.