The last shot at American Idioms
The use of metaphors is relatively late in the modern European languages; it is, in principle, a post-Renaissance phenomenon. The same holds for the idioms based on metaphors. No one in the days of Beowulf and perhaps even of Chaucer would have coined the phrase to lose one’s marbles “to become insane,” even if so long ago boys were as intent on collecting marbles as was Tom Sawyer.