That of the ancient Greeks consisted of Zeus, Apollo and Aphrodite, the Egyptian being Osiris, Isis and Horus. The Romans believed the world to be under the rule of three gods--Jupiter (Heaven), Neptune (Ocean), and Pluto (Hades). The first has three thunderbolts--Neptune, the Trident, and Pluto, Cerberus, the triple-headed dog. Three in number also were the Fates, Furies, Graces, Harpies and Sibylline Books. In the underworld the three judges of hell were Rhadamanthos, Minos and Æacos. _Muses_ The Muses were three times three as follows: Calliope. Epic Poetry. Clio. History. Melpomene. Tragedy. Euterpe. Lyric Poetry. Urania. Astronomy. Terpsichore. Dancing. Polyhegmnia. Religious service. Erato. Erotic Poetry--Geometry. Thalia. Comedy. The world is compounded of three elements--Earth, Water and Air. Man also is three--Body, Soul and Spirit; and the kingdom of Nature--Mineral, Animal and Vegetable. There are three Christian Graces--Faith, Hope and Charity, and three enemies of mankind, the World, Flesh and Devil. The number “Four” symbolises the quarters of the World--the Winds--the Gospels--the Evangelists and the four sacred Rivers. “Five” signifies the Cross and the Five Wounds. “Seven” has also been regarded as a mystic number, as in the Days of Creation, the days of the week, the Spirits before the Throne, the Ages in the life of man, the seven-armed candlesticks of the Hebrews; the sleepers of Ephesus; the champions of Christendom and the Wonders of the world. _Sacred Trees and Flowers, etc._ Certain flowers and trees were in ancient times dedicated to the Deities. The cornel cherry tree and the laurel were sacred to Apollo; the Cypress and Maidenhair to Pluto; the Dittany to the Moon; the Lily to Juno; the Myrtle to Venus; the Narcissus and Poppy to Ceres; the Oak to Jupiter; the Olive to Minerva; and the Vine to Bacchus. The Laurel wreath was given to the victor in the Pythian games. The victor in the Olympic games had a wreath of wild olive--of green parsley in the Nemean games, and of dried parsley or green pine in the Isthmian games. The Ancients believed that the laurel communicated the spirit of prophecy and poetry; hence the custom of crowning the Pythoness and poets. In modern times the laurel is a symbol of Victory and Peace.