Smiley
Overview
 
A smiley, smiley face, or happy face, (/) is a stylized representation of a smiling
Smile
A smile is a facial expression formed by flexing the muscles near both ends of the mouth. The smile can also be found around the eyes . Among humans, it is an expression denoting pleasure, joy, happiness, or amusement, but can also be an involuntary expression of anxiety, in which case it is known...

 human face, commonly occurring in popular culture
Popular culture
Popular culture is the totality of ideas, perspectives, attitudes, memes, images and other phenomena that are deemed preferred per an informal consensus within the mainstream of a given culture, especially Western culture of the early to mid 20th century and the emerging global mainstream of the...

. It is commonly represented as a yellow (many other colors are also used) circle (or sphere) with two black dots representing eyes and a black arc representing the mouth. “Smiley” is also sometimes used as a generic term for any emoticon
Emoticon
An emoticon is a facial expression pictorially represented by punctuation and letters, usually to express a writer’s mood. Emoticons are often used to alert a responder to the tenor or temper of a statement, and can change and improve interpretation of plain text. The word is a portmanteau word...

.

The variant spelling "smilie" is not as common, but the plural form "smilies" is commonly used.
The first unhappy face recorded on film can be seen in Ingmar Bergman
Ingmar Bergman
Ernst Ingmar Bergman was a Swedish director, writer and producer for film, stage and television. Described by Woody Allen as "probably the greatest film artist, all things considered, since the invention of the motion picture camera", he is recognized as one of the most accomplished and...

's 1948 film "Hamnstad".
 
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