an altar of Neptune in circo Flaminio, the sweating of
which is mentioned by Livy (xxviii. I . 4) among the prodigia of 206 B.C.
The same prodigium, however, is related by Cassius Dio (fr. lvii. 60) in
words that imply a real temple (ἱδρῶτι πολλῷ αἵ τε θύραι τοῦ Ποσειδωνίου καὶ ὁ βωμὸς ἐρρύη
), and it is probable that such a temple did exist at that
time (see below).