Teotihuacán, which had a population of around 100,000 at its height circa 500 CE, seems to have had no system of writing and left behind no known written records. But musical instruments have survived — quadruple flutes, double-chambered water whistles and the like. Researcher Arnd Adje Both, whom one might call a paleo-musicologist, has had copies of those instruments made and is planning to bring them to Teotihuacán to be played. – The Economist