Helen of Troy refuge with Leda. The swan gained her affection, and the two mated. Leda then produced an egg, from which Helen emerged. The First Vatican Mythographer introduces the notion that two eggs came from the union: one containing Castor and Pollux; one with Helen and Clytemnestra. Nevertheless, the same author earlier states that Helen, Castor and Pollux were produced from a single egg. Pseudo-Apollodorus states that Leda had intercourse with both Zeus and Tyndareus the night she conceived Helen. On the other hand, in the "Cypria", part of the Epic Cycle, Helen was the daughter of Zeus and the goddess Nemesis.
Helen (unit) be the most beautiful of twice as many women, so one "helen" is equivalent to 25.6 Ha. The most beautiful woman who ever lived would score 34.2 Ha, the equivalent of 1.34 helen, the pick of a dozen women would be 3.6 Ha, or 0.14 helen. Helen (unit) A helen is a humorous unit of measurement based on the concept that Helen of Troy, from the "Iliad", had a "face that launched a thousand ships". The helen is thus used to measure quantities of beauty in terms of the theoretical action that could be accomplished by the wielder of such