They were originally delineated and described by the German archaeologist August Mau, 1840–1909, from the excavation of wall paintings at Pompeii, which is one of the largest group of surviving examples of Roman frescoes.
Mereka aslinya didelienasikan dan dideskripsikan oleh arkeolog Jerman August Mau, 1840–1909, dari ekskavasi lukisan dinding di Pompeii, yang merupakan salah satu kelompok terbesar dari contoh fresko Romawi yang masih ada.