According to BBC News, Wal-Mart has applied for a trade mark in respect of the ‘smiley face logo’ popularised by folk music in the 1970s and presently adorning its employees’ uniforms and other promotional material. However, its application has been opposed by a Massachusetts graphic designer, who claims to have invented the iconic symbol back in 1968 — ironically, to cheer up disgruntled employees at an insurance firm.

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