Exactly 90 years ago a four-volume set of encyclopedia-like human interest books was published as The Human Interest Library: Visualized Knowledge by Midland Press in Chicago. In a previous post I commented on its thoroughly “Orientalist” flavor. The section on Egypt covers mainly the archaeological history with only a few brief comments on the then contemporary state of Egypt. One of the great mysteries over the years has been an explanation for how the massive pyramids were built. Here is a novel idea, if a picture is worth a thousand scholarly words: ants.