In the early days of Astrology, a "science" which was based on legends and myths, the names of the five planets then known were given to the days of the week. Apollo, the Sun-god, gave his name to Sunday, and his sister, Goddess Diana, to Monday, and these two days retained their names, but the days which followed those named for the sun and moon later became Germanized, as it were, or the names of the originally imported gods translated into those of the Germanic divinities. Thus the name of the Northern Sword-god Tyr, who resembles the Roman War-god Mars, was given the day of the week held sacred to Mars, now known as _Tuesday_, or Tiu's day, Mercury's day became Wodan's or _Wednesday_, Jove's day was called Thor's or _Thursday_, and the day of Venus transformed into _Friday_, the day of Freya, the wife of Wodan. The day of Saturnus, retained under this name in some northern tongues, became a _langardage_, or a bathing day, in others. As for the months--_October_ and _February_ were names derived from Roman festivals; a horse named October was sacrificed to the War-god Mars during this month, while February derived its name from the Roman festival Februalia, from _februare_, to purify. April, meaning Aprilis, from _aperire_ to open, obtained its name because it was the season when the buds began to open. _September_ (septem, seven), _November_ (novem, nine), and _December_ (decern, ten) were the 7th, 9th and 10th months of the year of the Roman calendar when the year consisted of 10 months. _January_ was named after Janus, the porter with the double head which enabled him to look back into the past and forward into the future; _May_ after Maia, one of the Pleiades; and _June_, after Juno, Queen of the gods and the Goddess of Marriage. Quintilis, the 5th month of the Roman year, which began in March, was named _July_ in honor of Julius Cæsar, while the 6th month, which was originally styled Sextilis, received its present name, _August_, from the Emperor Augustus. THE RINGED PLANET OF SATURN, THE GOD OF TIME _Diameter--73,700_ Although Jupiter is the largest planet and Mars the most interesting planet, the planet Saturn, as seen through a large telescope, is the most uniquely beautiful creation that man has ever beheld. The spectacle of a huge silvery ball surrounded by an equally huge and silvery ring suddenly disclosed in the midst of the darkness, is such an astounding surprise that one can never forget the strange sensations experienced when first beholding it. Saturn moves very slowly through the sky, traveling on the average only about one degree a month and spending two or three years in each zodiacal constellation. This is because its pathway lies millions of miles beyond that of Jupiter's, and is so large that it takes the planet 29½ years to complete its circuit around the sun.