Calippis, Or Caliippns, a Greek astronomer, born at Cyzicus in the early part of the 4th century B. O. He is said to have been a pupil of Plato, and associated with Aristotle in rectifying and completing the discoveries of Eudoxus. Already several attempts had been made to express in entire numbers the three great natural unities of time, the solar year, the lunar month, and the solar day. A century before, Meton had discovered that 19 years corresponded to 235 months, or 6,940 days. Calippus, it is said, by means of a lunar eclipse which occurred six years before the death of Alexander, was enabled to detect in this calculation an error of about a quarter of a day in the 19 years, which he proposed to avoid by quadrupling the cycle and reckoning it at 76 years less one day. This period of 76 years was called the Oalippic cycle, and was adopted by astronomers after the year 330 B. C.
A branch of the Hussites, so called from their demanding the communion in both kinds, that is, including the cup (Lat. calix), for laymen; also called Utraquists (Lat. utraque, in both). (See Hussites.) II. The followers of George Calixtus, the founder of the party called Syncretists. (See Calixtus, George).
Callahan, a N. W. county of Texas, partly drained by Hubbard's creek, the Middle fork of Pecan bayou, and an affluent of the Cedar fork of Brazos river; area, 900 sq. m.; yet unsettled. The surface is somewhat broken and rocky, and chiefly adapted to grazing. Timber is scarce, and the climate dry and salubrious.
Called The Misanthrope Tim0n, an Athenian who lived in the latter part of the 5th century B. C. In consequence of disappointments in friends, he secluded himself, and admitted no one to his society except Alcibiades. He is said to have died from a broken limb which he refused to have set. He is the subject of Shakespeare's "Timon of Athens".
Callicratidas, a Spartan general, succeeded Lysander, B. C. 406, in the command of the Lacedaemonian fleet against the Athenians. His first operations against Conon at Methym-na and Mytilene were successful, but an additional fleet of 150 vessels arriving from Athens, while he had but 120 besides those engaged in the blockade of the latter city, he was defeated off the Arginusee; and, thrown overboard in the action, he was drowned.
Callinus Of Ephesus, the earliest Greek elegiac poet, lived about 700 B. C. One of his elegies Consisting of 21 lines is extant, having been preserved by Stobasus.
Calliope, in Greek mythology, the muse of epic poetry, named from the sweetness of her voice ( beautiful, and the voice). She is represented in ancient art as bearing a tablet and stilus, waiting to record heroic deeds. She is particularly associated in the ancient statues with Homer.