Emoji are small digital images or icons used to express ideas, emotions, or objects within text-based messages5. Unlike their predecessor, the text-based emoticon (think:-) or;-)), emoji are full-color pictograms that can be inserted from a dedicated keyboard on smartphones and computers. The word "emoji" comes from the Japanese words *e* (絵, "picture") and *moji* (文字, "character"), and the resemblance to the English word "emoticon" is purely coincidental5.

Each emoji is standardized by the Unicode Consortium, meaning platforms like Apple, Google, Samsung, and Microsoft each design their own visual interpretation of the same character8. This is why the same emoji can look noticeably different depending on whether you're on an iPhone or an Android phone9. As of Unicode 15.1 in June 2023, there are 3,782 officially approved emoji characters9.

Emoji crossed from digital tool to mainstream cultural force in the mid-2010s. The White House included emoji in an economic report about millennials8. The "Face with Tears of Joy" emoji becoming Oxford's Word of the Year in 2015 marked the first time a pictograph beat out actual words for the honor, topping contenders like "lumbersexual" and "on fleek"9.

Kurita's original 176 emoji set was acquired by the Museum of Modern Art for its permanent collection9. Fred Benenson's *Emoji Dick*, the crowdsourced emoji translation of *Moby Dick* that took over 3.7 million seconds of human labor to create, was accepted into the Library of Congress7.

The non-profit Innocence en Danger created a disturbing ad campaign morphing real human faces into emoji to raise awareness about online predators targeting children14. The images, showing bald men grinning with emoji-like features, went viral and became one of the more memorable stranger danger campaigns online14.

Hershey's 2019 limited-edition emoji chocolate bar marked the first design change to the company's iconic milk chocolate bar in its 125-year history20. The EMOJI.com domain registrations trace back to April 2001 when ICANN made symbol domains available, though these symbols only became recognized as emoji after Unicode adopted them years later7.

The story of emoji is really two parallel stories: one about technology standardization and one about cultural adoption, and the two didn't fully merge until the mid-2010s.

After Apple's initial takedown of emoji-enabling apps in February 2009, the jailbreak community kept emoji alive outside Japan12. Ars Technica reported that users who had already enabled emoji wouldn't lose access even after firmware restores, since the preference was stored in iPhone backup files12. This created a growing base of emoji users in the West before any official support existed.

Google's Gmail Labs rolled out "Extra emoji" in 2009, an add-on that unlocked access to more than 1,200 emoji sourced from Japanese mobile carriers7. Google's own press release still called them "emoticons" at the time, showing how blurred the terminology remained7. The Urban Dictionary entry from 2013 attempted to draw a clear line, with user leanimenerd defining emoji as "tiny pictures you can put on your texts" and explicitly noting the word's Japanese etymology has nothing to do with "emoticon"6.

The diversity conversation started early. In June 2014, the iDiversicons app launched on Apple's App Store, calling itself "The First Diverse Emoji" with over 900 icons representing people of color, same-sex couples, and women in male-dominated professions4. Creator Katrina Parrott, a former NASA program manager, built the app after her daughter asked, "Why don't emoticons look like the person sending them?"17. She pitched the concept to the Unicode Technical Committee that same year17.

By December 2014, a formal Unicode proposal defined how emoji could support varying skin tones using the Fitzpatrick dermatological scale4. Apple shipped the skin tone options in an April 2015 iOS update, along with same-sex family emoji4. Users celebrated with the hashtag #BlackEmoji across Vine and Twitter18. The proposal was formally adopted in November 20154.

That same year, Oxford Dictionaries made history by naming the "Face with Tears of Joy" (😂) its Word of the Year, the first time a pictograph received the honor9. Oxford cited its dominance on social media as the deciding factor. By this point, Instagram reported that nearly half of all text on the platform contained emoji16.

2016 brought the great peach emoji controversy. When Apple unveiled a redesigned peach emoji in the iOS 10.2 beta that no longer resembled a pair of buttocks, users revolted online23. "RIP TO THE PEACH EMOJI, THE ONLY WAY I KNEW WHAT A BUTT LOOKS LIKE," one tweet read23. Apple ultimately scrapped the redesign, keeping the distinctive cleft intact21.

The iOS 10.2 update did successfully add Unicode 9.0 support, bringing 72 new emoji including the facepalm, shrug, and avocado15. New career emoji came in male and female versions across six skin tones, meaning 16 professions yielded 192 distinct images15. Emojipedia praised the new art style as "beautiful" and "a cohesive collection for the first time"15.

The burger emoji debate erupted in March 2017 when Twitter user @rgov pointed out that Samsung and Facebook placed the cheese below the lettuce on their cheeseburger emoji4. Two days later, a Facebook designer responded with an updated version, tweeting, "we sent the emoji chef back into the kitchen"4. The seemingly trivial design choice sparked genuine public discussion about platform consistency.

Google joined the culture wars in June 2018 when UX manager Jennifer Daniel announced the removal of the egg from the salad emoji in Android P to make it "a more inclusive vegan salad"4. The backlash was swift and mostly tongue-in-cheek: "Why dont you make a salad for every preference instead of this hateful exclusion of everyone who isnt a vegan?" one user replied4.

In May 2019, Google announced 53 gender-fluid emoji for Android Q, designed to appear neither male nor female19. "Gender is complicated. It is an impossible task to communicate gender in a single image," Daniel told Fast Company19. The designs used mid-length hair and ambiguous clothing choices, like replacing the vampire's bowtie with a chain22. That same month, Hershey's launched a limited-edition chocolate bar with 25 popular emoji molded into each piece, marking one of the bigger corporate crossovers20.