Catholic Church

Dogma, in its broadest sense, is any belief held definitively and without the possibility of reform. It may be in the form of an official system of principles or doctrines of a religion, such as Judaism, Roman Catholicism, Protestantism, or Islam, the positions of a philosopher or philosophical school, such as Stoicism, and political belief systems such as fascism, socialism, progressivism, liberalism, and conservatism.

In the pejorative sense, dogma refers to enforced decisions, such as those of aggressive political interests or authorities. More generally, it is applied to some strong belief that its adherents are not willing to discuss rationally. This attitude is named as a dogmatic one, or dogmatism, and is often used to refer to matters related to religion, though this pejorative sense strays far from the formal sense in which it is applied to religious belief. The pejorative sense is not limited to theistic attitudes alone and is often used with respect to political or philosophical dogmas.

Organized religion, also known as institutional religion, is religion in which belief systems and rituals are systematically arranged and formally established, typically by an official doctrine (or dogma), a hierarchical or bureaucratic leadership structure, and a codification of proper and improper behavior.

Claudius Ptolemy (/ˈtɒləmi/; Ancient Greek: Πτολεμαῖος, Ptolemaios; Latin: Claudius Ptolemaeus; c. 100 – 160s/170s AD), better known mononymously as Ptolemy, was a Greco-Roman mathematician, astronomer, astrologer, geographer, and music theorist who wrote about a dozen scientific treatises, three of which were important to later Byzantine, Islamic, and Western European science. The first was his astronomical treatise now known as the Almagest, originally entitled Mathēmatikḗ Syntaxis (Μαθηματικὴ Σύνταξις, Mathēmatikḗ Syntaxis, lit. 'Mathematical Treatise'). The second is the Geography, which is a thorough discussion on maps and the geographic knowledge of the Greco-Roman world. The third is the astrological treatise in which he attempted to adapt horoscopic astrology to the Aristotelian natural philosophy of his day. This is sometimes known as the Apotelesmatika (Αποτελεσματικά, 'On the Effects') but more commonly known as the Tetrábiblos (from the Koine Greek meaning 'four books'; Latin: Quadripartitum).

The Catholic Church promoted his work, which included the only mathematically sound geocentric model of the Solar System, and unlike most Greek mathematicians, Ptolemy's writings (foremost the Almagest) never ceased to be copied or commented upon, both in late antiquity and in the Middle Ages. However, it is likely that only a few truly mastered the mathematics necessary to understand his works, as evidenced particularly by the many abridged and watered-down introductions to Ptolemy's astronomy that were popular among the Arabs and Byzantines. His work on epicycles is now seen as a very complex theoretical model built in order to explain a false tenet based on faith.

Isidore of Seville (Latin: Isidorus Hispalensis; c. 560 – 4 April 636) was a Hispano-Roman scholar, theologian and archbishop of Seville. He is widely regarded, in the words of the 19th-century historian Charles Forbes René de Montalembert, as "the last scholar of the ancient world".

At a time of disintegration of classical culture, aristocratic violence, and widespread illiteracy, Isidore was involved in the conversion of the Arian Visigothic kings to Catholicism, both assisting his brother Leander of Seville and continuing after Leander's death. He was influential in the inner circle of Sisebut, Visigothic king of Hispania. Like Leander, he played a prominent role in the Councils of Toledo and Seville.

Pierre Maurice Marie Duhem (French: [pjɛʁ mɔʁis maʁi dy.ɛm, moʁ-] ; 9 June 1861 – 14 September 1916) was a French theoretical physicist who made significant contributions to thermodynamics, hydrodynamics, and the theory of elasticity. Duhem was also a prolific historian of science, noted especially for his pioneering work on the European Middle Ages. As a philosopher of science, Duhem is credited with the "Duhem–Quine thesis" on the indeterminacy of experimental criteria. Duhem's opposition to positivism was partly informed by his traditionalist Catholicism, an outlook that put him at odds with the dominant academic currents in France during his lifetime.

Prayer is an invocation or act that seeks to activate a rapport with an object of worship through deliberate communication. In the narrow sense, the term refers to an act of supplication or intercession directed towards a deity or a deified ancestor. More generally, prayer can also have the purpose of giving thanks or praise, and in comparative religion is closely associated with more abstract forms of meditation and with charms or spells.

Prayer can take a variety of forms: it can be part of a set liturgy or ritual, and it can be performed alone or in groups. Prayer may take the form of a hymn, incantation, formal creedal statement, or a spontaneous utterance in the praying person.

The Diocese of Rome (Latin: Dioecesis Urbis seu Romana; Italian: Diocesi di Roma) is a Latin diocese of the Catholic Church under the direct jurisdiction of the pope, who is Bishop of Rome and hence the supreme pontiff and head of the worldwide Catholic Church. As the Holy See, the papacy is a sovereign entity with diplomatic relations, and it has civil jurisdiction over Vatican City (located geographically within the city of Rome). The Diocese of Rome consists of two geographical jurisdictions: the Vicariate of Rome, and the small Vicariate of Vatican City. It is the metropolitan diocese of the Province of Rome, an ecclesiastical province in the Ecclesiastical Region of Lazio in Italy. According to Catholic tradition, the first bishop of Rome was Saint Peter during the first century.

Historically, many Rome-born men – as well as others born elsewhere on the Italian peninsula – served as bishops of Rome. Since 1900, however, there has been only one Rome-born bishop of Rome, Pius XII (1939–1958). In addition, throughout history, non-Italians have served as bishops of Rome, beginning with the first of them according to Catholic tradition – Saint Peter.

The Roman Curia (Latin: Curia Romana, lit. '[Royal] Court of Rome') comprises the administrative institutions of the Holy See. It is often incorrectly referred to as the Vatican Curia.

The Roman Curia is the central body through which the affairs of the Catholic Church are conducted. The Roman Curia is the institution of which the Roman Pontiff ordinarily makes use in the exercise of his supreme pastoral office and universal mission in the world: thus curialism refers traditionally to an emphasis on the supreme authority of the Holy See within the Catholic Church. It is at the service of the Pope and bishops, fulfilling their function with an evangelical spirit, working for the good and at the service of communion, unity and edification of the Universal Church and attending to the demands of the world in which the Church is called to fulfill its duty and mission (Praedicate evangelium, article 1).

The Lateran Treaty (Italian: Patti Lateranensi; Latin: Pacta Lateranensia) was one component of the Lateran Pacts of 1929, agreements between Italy under King Victor Emmanuel III and Prime Minister Benito Mussolini and the Holy See under Pope Pius XI to settle the long-standing Roman question. The treaty and associated pacts were named after the Lateran Palace, where they were signed on 11 February 1929. The Italian Parliament ratified them on 7 June 1929.

The treaty recognised Vatican City as an independent state under the sovereignty of the Holy See. Italy also agreed to give the Catholic Church financial compensation for the loss of the Papal States. In 1948, the Lateran Treaty was recognized in the Constitution of Italy as regulating the relations between the Italian Republic and the Catholic Church. While the treaty was significantly revised in 1984, ending the status of Catholicism as the sole state religion of Italy, the Vatican remains a distinct sovereign entity to the present day.

A sacerdotal state is a state whose head is also an ecclesiastical leader designated by a religious body. An example of this kind of state is the Vatican City: its heads of state, the popes of the Catholic Church, have governed papal lands distinct from secular authority since the establishment of the Papal States in the 8th century AD. Andorra operates under a semi-sacerdotal system, as one of its co-heads of state is the bishop of Urgell, while the other is the head of state of France. However unlike the Vatican, the co-princes of Andorra are ceremonial and not closely involved in the government.

In the past, bishops commonly assumed temporal as well as spiritual authority and ruled as prince-bishops. This occurred, for example, in the Holy Roman Empire, where three of the seven imperial electors were prince-archbishops (those of Trier, Mainz and Cologne). After the 1648 Peace of Westphalia certain prince-bishoprics became bi-confessional and alternated between governance by Catholic bishops and by Protestant administrators.