Extracts a 4-digit decade from the current page title, and returns the name of the century in which that decade was.

• {{Century name from title decade}}

Mostly used in categorisation.

All parameters are optional

1. The single word "dash" changes the output from "nth century" to "nth-century"
2. A "nomatch" parameter may be used to specify text to be return if the input cannot be processed. The default behaviour is to return an empty string if there is no match

• {{Century name from title decade}}
  When used on e.g. Category:2010s in Northern Ireland, returns → 21st century
• {{Century name from title decade|dash}}
  When used on e.g. Category:1970s in Northern Ireland, returns → 20th-century
• {{Century name from title decade}}
  When used on e.g. Category:Belfast, returns →
• {{Century name from title decade|nomatch=FAIL}}
  When used on e.g. Category:Ballymena, returns → FAIL

This template is implemented by using {{Century name from decade or year}} around {{Title decade}}.

The same effect can be achieved by using {{Century name from decade or year|{{Title decade}}s}} ... but this wrapper makes more easily-read markup