The calendar of saints is a traditional Christian method of organising a liturgical year on the level of days by associating each day with one or more saints, and referring to the day as the saint's day of that saint. The system arose from the very early Christian custom of annual commemoration of martyrs on the date of their death. As the number of recognized saints increased during Late Antiquity and roughly the first half of the Middle Ages, eventually every day of the year had at least one saint who was commemorated on that ...

Including:

• Calendar of saints - January
• Calendar of saints - February
• Calendar of saints - March
• Calendar of saints - April
• Calendar of saints - May
• Calendar of saints - June
• Calendar of saints - July
• Calendar of saints - August
• Calendar of saints - September
• Calendar of saints - October
• Calendar of saints - November
• Calendar of saints - December

Read more here: » Calendar of saints: Encyclopedia - Calendar of saints

Arius (AD 256 - 336, poss. in North Africa) was an early Christian theologian, who taught that the Son of God was not eternal, and was subordinate to God the Father (a view known generally as Arianism). Although he attracted considerable support at the time (and since), Arius's views were deemed heretical at the Council of Nicaea, leading to the formation of the Nicene Creed. Arius is also known as Arius of Alexandria. He was possibly of Libyan and Berber descent. His father's name is given as Ammonius. He was made presbyter of ...

Including:

• Arius - Problems with sources
• Arius - Early Life
• Arius - Arius's Concept of Christ
• Arius - The Council of Nicaea
• Arius - After the Council of Nicaea

Read more here: » Arius: Encyclopedia - Arius

The Basilica of St. John Lateran — in Italian, the Basilica di San Giovanni in Laterano — is the cathedral church of Rome and the official ecclesiastical seat of the Pope. Officially named Archibasilica Sanctissimi Salvatoris (Archbasilica of the Most Holy Savior), it is the oldest and ranks first among the five major basilicas, and holds the title of ecumenical motherchurch among Catholics. An inscription on the façade, Christo Salvatore, dedicates the Lateran as Archbasilica of the Most Holy Saviour, ...

Including:

• Basilica of St. John Lateran - Lateran Palace
• Basilica of St. John Lateran - Reconstruction
• Basilica of St. John Lateran - Architectural history
• Basilica of St. John Lateran - Lateran cloister
• Basilica of St. John Lateran - Lateran baptistry
• Basilica of St. John Lateran - Catholic liturgy

Read more here: » Basilica of St. John Lateran: Encyclopedia - Basilica of St. John Lateran

Arius was a pupil of Lucian of Antioch, who was both a celebrated Christian teacher and a martyr for the faith. In a letter to bishop Alexander of Constantinople, Alexander of Alexandria wrote that Arius derived his heresy from Lucian. The object of the letter is to complain of the errors Arius was then diffusing but the charge is vague in itself, and is unsupported by other authorities, and Alexander's language, like that of most controversialists in those days, is not a little violent. Moreover, Lucian is not stated, even by Alexander himself, to have fallen into the heresy afterwards promulgated by Arius, but is accused ad i ...

See also:

Arius, Arius - Problems with sources, Arius - Early Life, Arius - Arius's Concept of Christ, Arius - The Council of Nicaea, Arius - After the Council of Nicaea

Read more here: » Arius: Encyclopedia II - Arius - Early Life

An apse lined with mosaics and open to the air still preserves the memory of one of the most famous halls of the ancient palace, the "Triclinium" of Pope Leo III, which was the state banqueting hall. The existing structure is not ancient, but it is possible that some portions of the original mosaics have been preserved in a three-part mosaic: in the centre Christ gives their mission to the Apostles, on the left he gives the keys to St. Sylvester and the Labarum to Constantine, while on the right St. P ...

See also:

Basilica of St. John Lateran, Basilica of St. John Lateran - Lateran Palace, Basilica of St. John Lateran - Reconstruction, Basilica of St. John Lateran - Architectural history, Basilica of St. John Lateran - Lateran cloister, Basilica of St. John Lateran - Lateran baptistry, Basilica of St. John Lateran - Catholic liturgy

Read more here: » Basilica of St. John Lateran: Encyclopedia II - Basilica of St. John Lateran - Architectural history

The site on which the Basilica sits was occupied during the Early Empire by the palace of the gens Laterani. The Laterani served as administrators for several emperors; Sextius Lateranus was the first plebeian to attain the rank of consul. One of the Laterani, Consul-designate Plautius Lateranus, became famous for being accused by Nero of conspiracy against the emperor. The accusation resulted in the confiscation and redistribution of his properties. The Lateran Palace fell into the hands of the emperor when Constantine married his se ...

See also:

Basilica of St. John Lateran, Basilica of St. John Lateran - Lateran Palace, Basilica of St. John Lateran - Reconstruction, Basilica of St. John Lateran - Architectural history, Basilica of St. John Lateran - Lateran cloister, Basilica of St. John Lateran - Lateran baptistry, Basilica of St. John Lateran - Catholic liturgy

Read more here: » Basilica of St. John Lateran: Encyclopedia II - Basilica of St. John Lateran - Lateran Palace

The Christian church had by this time become so powerful a force in the Roman world that Constantine found himself unable to keep aloof from the controversy. He therefore sent Hosius, bishop of Córdoba to put an end, if possible, to the controversy, armed with an open letter from the Emperor: "Wherefore let each one of you, showing consideration for the other, listen to the impartial exhortation of your fellow-servant." But as it continued to rage, Constantine took an unprecedented step: he called a council of delegates, summoned from all p ...

See also:

Arius, Arius - Problems with sources, Arius - Early Life, Arius - Arius's Concept of Christ, Arius - The Council of Nicaea, Arius - After the Council of Nicaea

Read more here: » Arius: Encyclopedia II - Arius - The Council of Nicaea

This question of the exact relationship between the Father and the Son, a part of Christology, had been raised some 50 years before Arius, when Paul of Samosata was deposed in AD 269 for his agreement with those who had used the word homoousios (Greek for same substance) to express the relation of the Father and the Son. The expression was at that time thought to have a Sabellian tendency, though, as events showed, this was on account o ...

See also:

Arius, Arius - Problems with sources, Arius - Early Life, Arius - Arius's Concept of Christ, Arius - The Council of Nicaea, Arius - After the Council of Nicaea

Read more here: » Arius: Encyclopedia II - Arius - Arius's Concept of Christ