TIBULLUS, ALBIUS ° (48?–19 b.c.e.), Roman elegiac poet. He mentions Saturn's sacred day in a list of supposed impediments to his leaving Rome (Elegies 1:3, 17–18, cf. Ovid). Reinach thought he meant the Sabbath. This is quite possible, for there is no evidence of restriction of movement on Saturday in Roman ritual, and *Augustine (De consensu Evangelistarum 1:30) also thought that some pagans confused Saturn and the Jewish God because the Sabbath falls on Saturn's day (cf. Tacitus, Histories 5:4).