Which cheek and how many? In France and beyond, a kiss isn’t just a kiss

Which cheek and how many? In France and beyond, a kiss isn’t just a kiss

Its origin is unknown, though there are many theories. Is it a ritualized form of ancestral behavior, like sniffing each other for recognition, or is it an emotional one arising from childhood? There’s no consensus among historians, anthropologists and other experts of human behavior. The ritual appears to date back to antiquity and has known highs and lows throughout modern human history. 

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