Template:Trade unions (dis)established in the YYY0s category header/doc

This template is used to create a category of one of these two forms: ... where "YYY0s" is a 4-digit decade.
 * "Trade unions established in the YYY0s"
 * "Trade unions disestablished in the YYY0s"

The template detects whether the category is an "establishments" or "disestablishments" category, and adjusts accordingly.

Usage
No parameters needed