Giotto, The kiss of Judas. Upper Basilica of S. Francis, Assisi. ca. 1290-1295. Giornate joints in what it is considered the earliest known mural executed with true fresco (S. Tsuji, The Origins of Buon Fresco, Zeitschrift für Kunstgeschichte 46, 2, 1983, 215-222).
The joints between the areas of lime mortar painted each day (giornate) are typical of murals painted in fresco, but are absent from paintings executed on a dry rendering, as with the Roman wall paintings.