Sentence:  "Metrocles" somewhat indiscreetly, as he was disputing in his Schole, in presence of his auditory, let a <WSD>fart</WSD>, for shame whereof he afterwards kept his house and could not be drawen abroadnb.... 
Meaning of the word marked with <WSD> tags:  An emission of digestive gases from the anus; a flatus. (from 15th c.)