Template:Estcatbycountrydecade/doc

Usage
For categories such as Category:1800s by foo, enter:

No parameters are needed.

Note that such "by continent" categories for years before 1500 are deprecated, see Categories_for_discussion/Log/2017_November_10.

For categories such as Category:1800s by foo, do not use this template, but EstcatContinent.