[German version]

Roman civic festival of the 'cleaning of the trumpets' (tubi or tubae), which was celebrated on 23 March and 23 May. The March date was considered as feriae (holiday) for Mars (InscrIt 13,2,104; 123), the May date as feriae for Volcanus (InscrIt 13,2, 57 and 187). The doubling of the tubilustrium in May is still unclear (but see [1. 219-221]). During these days, the trumpets were cleaned in the Atrium Sutorium and then used for cultic activities (sacra: Varro, Ling. 6,14; cf. InscrIt 13,2, 123; Fest. 480 et passim) -- according to modern interpretation for summoning…