Template:Railway stations opened or closed in the YYY0s category header

{{Documentation|content=To make a category of the form "Railway stations opened in the YYY0s" or "Railway stations closed in the YYY0s", where YYYY is a 4-digit decade

e.g.
 * Category:Railway stations opened in the 1850s
 * Category:Railway stations closed in the 1960s

The template detects which format is being used, and adjusts accordingly.

Redirects

 * Railway stations opened in the YYY0s category header
 * Railway stations closed in the YYY0s category header

No parameters needed