Templates are a type of page that contain boilerplate text that is intended to be displayed on more than one page in Wikipedia.
This Tip of the day box is an example of a template (there are several versions actually), and besides being displayed here it is displayed on many userpages as well.
Template names start with the prefix "Template:" followed by the page name. The main version of the template you are reading right now is called "Template:totd".
To display a template on a page, go to the target page, click "edit", and add the template's name (with or without the prefix) surrounded by double curly brackets to the page's source text. (The text you see in the edit box when you click edit this page is called "source text", because it is a lot like programming code, which is called "source code").
Including a template on a page in this way is called "transclusion". Here's an example:
To include the Template:Philosophy topics, type this at the end of the philosophy article you wish to place it on::
To add this auto-updating template to your user page, use {{totd-tomorrow}}
Today's featured picture
Heungseon Daewongun (1821–1898) was the title of Yi Ha-eung, the regent of Joseon during the minority of Emperor Gojong in the 1860s. Until his death, he was a key political figure of late-Joseon Korea. The Daewongun is remembered both for the wide-ranging reforms that he attempted during his regency, as well as for what was described by historian Hilary Conroy as "vigorous enforcement of the seclusion policy, persecution of Christians, and the killing or driving off of foreigners who landed on Korean soil". This silk painting of the Daewongun, now in the collection of the National Museum of Korea, was created by an unknown artist circa 1869. It is designated as a Treasure of Korea.
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