 Foie gras, a well-known delicacy which is still enjoyed today, was invented by the Ancient Egyptians.The technique of gavage, cramming food into the mouth of domesticated ducks and geese, dates as far back as 2500 BC, when the Egyptians began keeping birds for food.A 14th century book translated and published in 2017 lists 10 recipes for sparrow which was eaten for its aphrodisiac properties.