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.
Smiley face: Its enduring origin story will make you grin
The Awkward Language of 'The Emoji Movie' - The Atlantic
The history of the smiley face is not actually that happy — Golden
Who Invented the Smiley Face? Discover the History of the Yellow Icon
The Smiley Face's History: Exploring a Joyful Symbol
Harvey Ross Ball, A Graphic Designer Who Invented the Iconic Smiley Face in 1963
Fifty years and $500m: the happy business of the smiley symbol, Business
The past, present, and future of emojis
200+ Emojis Explained: Types of Emojis, What do they mean & how to use them - Smartprix