Each of the Titans had a numerous offspring: Oceanus, especially, marrying his sister Têthys, begat three thousand daughters, the Oceanic nymphs, and as many sons: the rivers and springs passed for his offspring. Hyperiôn and his sister Theia had for their children Hêlios, Selênê, and Eôs; Kœos with Phœbê begat Lêtô and Asteria; the children of Krios were Astræos, Pallas, and Persês,—from Astræos and Eôs sprang the winds Zephyrus, Boreas, and Notus. Iapetos, marrying the Oceanic nymph Clymenê, counted as his progeny the celebrated Promêtheus, Epimêtheus, Menœtius, and Atlas. But the offspring of Kronos were the most powerful and transcendent of all. He married his sister Rhea, and had by her three daughters—Hestia, Dêmêtêr, and Hêrê—and three sons, Hadês, Poseidôn, and Zeus, the latter at once the youngest and the greatest. But Kronos foreboded to himself destruction from one of his own children, and accordingly, as soon as any of them were born, he immediately swallowed them and retained them in his own belly. In this manner had the first five been treated, and Rhea was on the point of being delivered of Zeus. Grieved and indignant at the loss of her children, she applied for counsel to her father and mother, Uranos and Gæa, who aided her to conceal the birth of Zeus. They conveyed her by night to Lyktus in Crête, hid the new-born child in a woody cavern on Mount Ida, and gave to Kronos, in place of it, a stone wrapped in swaddling clothes, which he greedily swallowed, believing it to be his child. Thus was the safety of Zeus ensured.[9] As he grew up his vast powers fully developed themselves: at the suggestion of Gæa, he induced Kronos by stratagem to vomit up, first the stone which had been given to him,—next, the five children whom he had previously devoured. Hestia, Dêmêtêr, Hêrê, Poseidôn and Hadês, were thus allowed to grow up along with Zeus; and the stone to which the latter owed his preservation was placed near the temple of Delphi, where it ever afterwards stood, as a conspicuous and venerable memorial to the religious Greek.[10] [9] Hesiod, Theog. 452, 487. Apollod. i. 1, 6. [10] Hesiod, Theog. 498.— Τὸν μὲν Ζεὺς στήριξε κατὰ χθονὸς εὐρυοδείης Πυθοῖ ἐν ἠγαθέῃ, γυάλοις ὑπὸ Παρνησοῖο, Σῆμ᾽ ἔμεν ἐξοπίσω, θαῦμα θνητοῖσι βροτοῖσι.