Wikipedia:Tip of the day/August 16

How to create a subcategory

There are two ways to create subcategories.

1. Add a category tag to an already existing category page. For example, add the text [[Category:Animals by common name]] to the bottom of the page Category:Apes by common name. Then "Apes by common name" will show up as a category in the list at Category:Animals by common name.
2. If the sub-category page does not already exist, then you have to create it first (see the tip How to create a category). For example, after you create the Category:Apes by common name page, then you click edit and add [[Category:Animals by common name]] to the bottom of it.

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Read more:

Wikipedia:Categorization  

Meta:MediaWiki User's Guide: Using Categories