Vent Your Spleen And The Origin Of The Anger Idiom
The origin of the idiom to vent your spleen dates back to Hippocrates in 400 BC. The belief endured until the nineteenth century that four bodily fluids controlled physical and mental qualities. Blood, phlegm, yellow bile, and black bile were called humours. The word humour, or humor in US spelling, derives from Latin, meaning liquid…
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