Who Invented the Smiley Face? Discover the History of the Yellow Icon
The yellow smiley face is immediately recognizable as the symbol for happiness. However, the story behind the graphic isn’t as cheerful as you might expect.
Harvey Ross Ball, A Graphic Designer Who Invented the Iconic Smiley Face in 1963
Awesome Face / Epic Face, The Know Your Meme Archive Wiki
The Smiley Face's History: Exploring a Joyful Symbol
All This Is That: The origin and back story of the smiley face
How The Smiley Face Became a Counter-Cultural Symbol
The Awkward Language of 'The Emoji Movie' - The Atlantic
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A brief history of emoji and how we use them at Zapier
How The Smiley Face Became a Counter-Cultural Symbol