An unofficial holiday celebrated every year on July 17th since 2014, World Emoji Day is “the brainchild of Jeremy Burge“ the founder of Emojipedia.
Learn more about it on these websites:
https://en.wikipedia.org/wiki/World_Emoji_Day
https://emojipedia.org/world-emoji-day/
https://www.daysoftheyear.com/days/world-emoji-day
https://www.instagram.com/worldemojiday/
https://www.facebook.com/pg/worldemojiday/posts/