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synodic period

(Encyclopedia)synodic period sĭnŏdˈĭk [key], in astronomy, length of time during which a body in the solar system makes one orbit of the sun relative to the earth, i.e., returns to the same elongation. Because ...

Gregory XIII

(Encyclopedia)Gregory XIII, 1502–85, pope (1572–85), an Italian named Ugo Buoncompagni, b. Bologna; successor of St. Pius V. He is best known for his work on the calendar, and the reformed calendar, the Gregori...

rabbi

(Encyclopedia)rabbi [Heb.,=my master; my teacher], the title of a Jewish spiritual leader. The role of the rabbi has undergone a number of transformations. In the Talmudic period, rabbis were primarily teachers and...

Easter

(Encyclopedia)Easter [A.S. Eastre, name of a spring goddess], chief Christian feast, commemorating the resurrection of Jesus after his crucifixion. In the West, Easter is celebrated on the Sunday following the full...

year

(Encyclopedia)year, time required for the earth to complete one orbit about the sun. The solar or tropical year is measured relative to the sun and is equal to 365 days, 5 hr, 48 min, 46 sec of mean solar time (see...

Jewish literature

(Encyclopedia)Jewish literature: see Hebrew literature. ...

liturgy, Jewish

(Encyclopedia)liturgy, Jewish, rites, observances, and procedures of Judaism. Communal prayer, with a quorum of ten men (or in some modern communities, ten people), replaced the priests of the Temple cult. There ar...

Whitby, Synod of

(Encyclopedia)Whitby, Synod of, called by King Oswy of Northumbria in 663 at Whitby, England. Its purpose was to choose between the usages of the Celtic and Roman churches, primarily in the matter of reckoning the ...

Valentine, Saint

(Encyclopedia)Valentine, Saint, d. c.270, Roman martyr priest. The customs connected with him in English-speaking countries are probably a survival from a period when a pagan festival associated with love occurred ...

Agatha, Saint

(Encyclopedia)Agatha, Saint ăgˈəthə [key], 3d cent., Sicilian virgin, martyred under Roman Emperor Decius. She is mentioned in the Martyrology of Jerome and the Calendar of Carthage in the 6th cent. Agatha is i...