World Emoji Day is an unofficial holiday celebrated on July 17, known as the "global celebration of emoji."

Emojis are ideograms and smileys popular in messages and web pages. They were meant to express things, like facial expressions, common objects, places and types of weather, as well as animals.

While they are similar to emoticons, emojis are not typographics. Using actual pictures, this is why emojis are also called "pictographs."

As emoji creators made artistic presentations of ideas and objects, emoji characters can differ from one platform to another. But they need to be within the limits defined by the Unicode specification.

It's Apple's tradition to show July 17th on its calendar emoji. This led to some Apple products to initially nickname July 17 the "World Emoji Day."

The first that made July 17th the "World Emoji Day" was Jeremy Burge, a self-titled emoji historian who is also the founder of Emojipedia. The day celebrates emojis with events and product releases.