He has ever been the patron saint of Mediterranean sailors, who regard St Elmo's fire as the visible sign of his guardianship. The phenomenon was known to the ancient Greeks, and Pliny in his Natural History states that when there were two lights sailors called them Castor and Pollux and invoked them as gods.
It fronted on to the ancient forum, part of the pavement of which, with a base for the equestrian statues of Castor and Pollux (as the inscription upon it records) has been laid bare beneath the present Piazza Vittorio Emanuele.
In 1842-1849, King Louis built himself to the west of the town a country house, called the Pompeianum, from its being an imitation of the house of Castor and Pollux at Pompeii.
After admission to the college, the ephebus took the oath of allegiance, recorded in Pollux and Stobaeus (but not in Aristotle), in the temple of Aglaurus, and was sent to Munychia or Acte to form one of the garrison.
Accomplished men of letters, such as Julius Vestinus and Aelius Dionysius, selected from his writings choice passages for declamation or perusal, of which fragments are incorporated in the miscellany of Photius and the lexicons of Harpocration, Pollux and Suidas.
The first hint of the employment of the dog in the pursuit of other animals is given by Oppian in his Cynegetica, who attributes it to Pollux about zoo years after the promulgation of the Levitical law.
But Lynceus, whose keenness of sight was proverbial, saw Castor through the trunk and warned his brother, who thereupon slew the mortal Castor; finally, Pollux slew Lynceus, and Idas was struck by lightning (Apollodorus iii.
Among these is the famous Ficoroni casket, engraved with pictures of the arrival of the Argonauts in Bithynia and the victory of Pollux over Amycus.
The four columns erected on the site of the temple of Castor and Pollux are a modern (and incorrect) restoration in which portions of two buildings have been used.
After studying at Leipzig, he went to Amsterdam, where he edited Homer and the Onomasticon of Julius Pollux for Wetzstein the publisher.