in Roman antiquity, festivals of Bacchus celebrated twice a-year; the first on the twelfth of the calends of March, and the other on the eighteenth of the calends of November. They were instituted by Romulus, who, during these feasts, used to entertain the senate. Among other heathen festivals which the primitive Christians were much inclined to observe, Tertullian mentions the brumæ or brumalia.