This Greco-Roman historian flourished in the latter half of the first century of our era. His information as to the deeds of Theseus, already for many centuries a staple ingredient in popular legendry, was drawn from the accounts of the early Greek writers Bacchylides (fifth century B.C.), Cleidemus (circ. 420–350 B.C.), Philochorus (circ. 306–260 B.C.), and others.

The Cretan exploit was perhaps the most romantic of the long series of heroic acts attributed to Theseus. Let us briefly recall it.

Aegeus, the father of Theseus, was King of Athens. At that time there reigned at Knossos, in Crete, a monarch called Minos, who held sway over what was then the most powerful maritime state in the Mediterranean. Minos had a son named Androgeos, who, during his travels in Attica, was treacherously set upon and slain, or so his father was informed. In consequence of this Minos imposed a penalty on the Athenians in the form of a tribute to be paid once every nine years, such tribute to consist of seven youths and seven maidens, who were to be shipped to Knossos at the appointed periods.

There was at the court of Minos an exceedingly clever and renowned artificer or engineer, Daedalus by name, to whom all sorts of miraculous inventions are ascribed. This Daedalus had devised an ingenious structure, the "Labyrinth," so contrived that if anybody were placed therein he would find it practically impossible to discover the exit without a guide.

The Labyrinth was designed as a dwelling for, or at any rate was inhabited by, a hideous and cruel being called the Minotaur, a monstrous offspring of Queen Pasiphaë, wife of Minos. The Minotaur is described as being half man and half bull, or a man with a bull's head, a ferocious creature that destroyed any unfortunate human beings who might come within its power. According to report, the youths and maidens of the Athenian tribute were periodically, one by one, thrust into the Labyrinth, where, after futile wanderings in the endeavour to find an exit, they were finally caught and slain by the Minotaur.

When Theseus arrived at the court of Aegeus, having been brought up hitherto by his mother in a distant seclusion, he was distressed to find that his father's joy in the reunion was overcast by a deepening sadness. On inquiring the reason for this, he learned of the vindictive tribute laid upon the kingdom, and that the time for the third payment was approaching.

"Let me make one of the fourteen," said the valiant youth. "I will find a way to slay this Minotaur, and then there will be no further need for the tribute."

Fig. 5. Cretan Labyrinth. (Florentine Picture Chronicle.)

After various attempts to dissuade him, Aegeus at length consented, but stipulated that if Theseus were successful in his design the tribute ship should, on its return voyage, hoist a white sail in place of the black one which it customarily bore.