St. Joseph

Saint Joseph's Day, also called the Feast of Saint Joseph or the Solemnity of Saint Joseph, is in Western Christianity the principal feast day of Saint Joseph, husband of the Virgin Mary and legal father of Jesus Christ, celebrated on 19 […]

Vernal Equinox

The March equinox marks the beginning of astronomical spring and the end of astronomical winter in the Northern Hemisphere.

New Moon

New Moon. By the modern definition, New Moon occurs when the Moon and Sun are at the same geocentric ecliptic longitude. The part of the Moon facing us is completely […]

World Meteorological Day

The World Meteorological Organization is a specialized agency of the United Nations, based in Geneva. It "is dedicated to international cooperation and coordination on the state and behaviour of the […]

Christopher Clavius SJ, born 1538

Christopher Clavius, SJ (25 March 1538 – 6 February 1612) was a Jesuit German mathematician, head of mathematicians at the Collegio Romano, and astronomer who was a member of the Vatican commission that accepted the proposed […]

Annunciation of the Lord

The Feast of the Annunciation, in Greek, Ο Ευαγγελισμός της Θεοτόκου, contemporarily the Solemnity of the Annunciation, and also called Lady Day, the Feast of the Incarnation (Festum Incarnationis), or Conceptio Christi (Christ’s Conception), commemorates the visit of […]

Daylight Savings Time begins in Europe

Daylight saving time (DST), also referred to as daylight savings time or daylight time (United States, Canada, and Australia), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks (typically by one […]