Template:Dated/doc

{	"params": { "1": {			"description": "replace the word \"article\" by something else, if desired (e.g., by section, list, etc.)", "type": "string" },		"date": { "description": "Specify the date the article became outdated", "type": "date" }	},	"description": "Use this template to mark an article as outdated and to encourage other readers to improve its contents.\n\nAdding this to an article, automatically adds it to the Outdated articles category.\n", "format": "inline" }

Usage
See the template's testcases: