MUNICH, GERMANY - SEPTEMBER 06: In this photo illustration Google's Chrome browser shortcut, Google Inc.'s new Web browser, is displayed next to Mozilla Firefox shortcut and Microsoft's Internet Explorer browser shortcut, on an laptop. (Photo Illustration by Alexander Hassenstein/Getty Images)
MUNICH, GERMANY - SEPTEMBER 06: In this photo illustration Google's Chrome browser shortcut, Google Inc.'s new Web browser, is displayed next to Mozilla Firefox shortcut and Microsoft's Internet Explorer browser shortcut, on an laptop. (Photo Illustration by Alexander Hassenstein/Getty Images)
AIRED; January 22, 2026
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Long before social media platforms, comment sections, and emoji keyboards, misunderstandings were already shaping online communication.
In September 1982, that problem surfaced on a small network of computers at Carnegie Mellon University, where a few dozen computer scientists were using early electronic message boards—primitive by today’s standards, but revolutionary at the time. Messages were text-only, stripped of facial expressions, tone of voice, or context. Humor, sarcasm, and jokes often landed the wrong way.
“There was no way to tell if someone was joking or serious,” recalled Scott E. Fahlman, a computer scientist at Carnegie Mellon. “You couldn’t see if the person was smirking or being dead serious.”
Those early bulletin boards functioned much like today’s social media feeds: users could post a message for everyone in the group to see. Almost immediately, disagreements and “flame wars” followed. What one person intended as humor, another interpreted as a serious statement—or worse, an official warning.
One late-night discussion about hypothetical physics experiments in a free-falling elevator pushed the issue to a breaking point. A joking comment about mercury contamination was taken seriously by an administrator, who warned that such messages could be misinterpreted as real safety alerts unless clearly labeled.
That moment sparked a simple but historic idea.
With no images, no emojis, and only a limited set of keyboard characters available, Fahlman began thinking about how to mark jokes quickly and clearly. Typing “just kidding” every time was tedious. Other suggestions—like adding symbols to subject lines—felt ambiguous.
Then came the solution: a sideways face made from punctuation.
Using a colon, a hyphen, and a parenthesis, Fahlman proposed :-) to indicate a joke, and :-( to signal seriousness. Users would simply tilt their heads to read the expression.
“It was meant to amuse maybe ten people,” Fahlman said. “I didn’t think it would go anywhere.”
Instead, it spread rapidly.
Within weeks, smiley faces began appearing in messages sent through ARPANET, the U.S. Department of Defense–run network that connected major universities and research institutions. That same year, ARPANET transitioned into what would soon be called the internet, opening access to a wider academic community under civilian control.
The timing was perfect.
As more universities joined the network, the smiley face traveled with them—from Carnegie Mellon to Stanford, MIT, Xerox PARC, and eventually overseas to Europe and Asia. What began as a practical solution to tone confusion became a universal shorthand for emotion.
“It went viral before we even had a word for viral,” Fahlman said.
Over time, the symbols evolved beyond marking jokes. They came to represent happiness, sadness, and emotional context—laying the groundwork for the emojis that now dominate digital communication.
Decades later, when misunderstandings erupt on platforms like X, Facebook, or comment threads across the internet, the problem feels modern. But as Fahlman’s story shows, the challenge of conveying tone online—and the human desire to be understood—has been there since the very beginning.
And it all started with three characters and a sideways smile.
