Template:School districts (dis)established in YYYY category header/doc

 is used to create categories of the form "School districts established in YYYY" or "School districts disestablished in YYYY", where YYYY is a 4-digit year.

e.g.
 * Category:School districts established in 1980
 * Category:School districts disestablished in 2018

Usage
No parameters are needed.

Redirects

 * School districts established by year