Juggling

Juggling is among the oldest documented practices of skilled play. The earliest evidence comes from a wall painting in the fifteenth tomb at Beni Hasan in Middle Egypt, dated to the early second millennium BCE, in which four women throw balls in unmistakable patterns. From the Egyptian and Etruscan tomb decorations through the Roman ventilator and the medieval European jongleur, juggling has been continuously practised for nearly four millennia. In the late twentieth century it acquired a mathematical structure: Claude Shannon proved the first uniform juggling theorem, relating throw height to the number of objects; in the same decade, Bengt Magnusson, Bruce Tiemann, and Paul Klimek independently developed siteswap notation, which permits jugglers to read, write, and compose patterns the way musicians read scores. Juggling is the wonder of how a body learns a rhythm — of how three objects in the air, each making a different journey, can be perceived and managed as a single moving whole. The discipline asks of its practitioner the same thing the cellist asks of hers: a thousand small repetitions, listened to from inside.

Beni Hasan tomb paintings (c. 2000 BCE); Roman epigraphic record (Settimo Severo and the ventilator tradition, second–third centuries CE); the European jongleur and German Gaukelei traditions of the Middle Ages; the modern revival through Bobby May and the International Jugglers’ Association (founded 1947). Siteswap notation developed independently by Magnusson, Tiemann, and Klimek (1985). Claude Shannon’s juggling theorem, drafted in the 1980s and published posthumously in 1992, formalises the discipline as mathematics.