February 29 came to be regarded as the leap day when the Roman system of numbering days was replaced by sequential numbering in the late Middle Ages.

* Leonardo Fibonacci writes Liber Abaci, about the modus Indorum, the numbering method of India ; it is the first major work in Europe toward moving away from the use of Roman numerals.

* The rebel slaves of the Third Servile War: Between 73 BC and 71 BC a band of slaves, eventually numbering about 120, 000, under the ( at least partial ) leadership of Spartacus were in open revolt against the Roman republic.

The Sundays resume their numbering at the point that will make the Sunday before Advent the thirty-fourth, omitting any weeks for which there is no room ( present-day form of the Roman Rite ) or are numbered as " Sundays after Pentecost " ( pre-1970 Roman Rite, Eastern Orthodoxy and some Protestants ) or as " Sundays after Trinity " ( some Protestants ).

There used to be several additional articles with Roman numbering, however all except articles IX and XIX are now abrogated.

There are three conventional ways of numbering: One using Arabic numerals, and two using Roman numerals.

However, since the structural meaning of a chord depends exclusively upon the degree of the scale on which it is built, chords are usually analysed by numbering them, using Roman numerals, upwards from the key-note ( See diatonic function ).

* using a phonetic numbering system based on the English language or a combination of English and Roman languages: Wun, Too, Tree, Fow-er, Fife, Six, Sev-en, Ait, Nin-er, Zero, Decimal, alternatively in marine communication: unaone, bissotwo, terrathree, kartefour, pantafive, soxisix, setteseven, oktoeight, novenine, nadazero

The Roman numbering system arose with the very first discovery of natural satellites other than Earth's Moon: Galileo referred to the Galilean moons as I through IV ( counting from Jupiter outward ), in part to spite his rival Simon Marius, who had proposed the names now adopted, after his own proposal to name the bodies after members of the Medici family failed to win currency.

Roman Catholicism is the majority religion of Miercurea Ciuc, its adherents numbering 74. 06 % of the total population.

It should be noted that the use of Roman numerals for numbering RAF units is a relatively modern development-in any case it was certainly not the practice in the RAF in the 1920s.

The difficulty of finding nontrivial Friedman numbers in Roman numerals increases not with the size of the number ( as is the case with positional notation numbering systems ) but with the numbers of symbols it has.

Its main street that comes from Rákoskeresztúr called Ferihegyi street divides it into two parts indicated by the numbering of the surrounding streets: on the left there are streets identified by Roman odd numbers ( I., III., V., etc.

Pope John has been the most common papal name in the Roman Catholic Church, used by 21 popes, though the numbering of them has been irregular through history owing to antipopes and differences in old lists.

* Subtract the number of electrons in the circle from the group number of the element ( the Roman numeral from the older system of group numbering, NOT the IUPAC 1-18 system ) to determine the formal charge.

The time scheme correlated the history with the reigns of the Roman Emperors, and the scope was broad.

The Trumpler scheme gives a cluster a three part designation, with a Roman numeral from I-IV indicating its concentration and detachment from the surrounding star field ( from strongly to weakly concentrated ), an Arabic numeral from 1 to 3 indicating the range in brightness of members ( from small to large range ), and p, m or r to indication whether the cluster is poor, medium or rich in stars.

The Roman Catholic Church, however, eventually used the Anno Domini dating scheme based on the birth of Christ on both the general public and royalty.

The Roman town's plan was based on their common scheme of the cardo and decumanus, occupying some 11 ha, with a line of walls measuring 413x261 m and having large defensive towers.

The bill was opposed by doctors, who feared a loss of income, and Roman Catholic bishops, who feared the scheme could lead to birth control and abortion.

To attract the disparate parties involved in this scheme, the plan offered three guarantees: Mexico would be independent from Madrid, Roman Catholicism would be the official religion, and all of Spanish blood, whether born in Spain or in the Americas, would be able to live as equals in the new state.

The earliest alphabet-related system of numerals used with the Greek letters was a set of the acrophonic Attic numerals, operating much like Roman numerals ( which derived from this scheme ), with: ; and with represented by composites of Π and a tiny version of the applicable power of ten.

Others, such as the pre-Roman Icknield Way and the Roman Fosse Way are nowadays rather patchy and where a modern road exists, are numbered according to the local scheme.

He spent several years trying to secure the election of Maria Theresa's son, the future Emperor Joseph II, as King of the Romans, a title of the Holy Roman Empire that carried enormous prestige but little real power — only to see this scheme fail because of Austrian indifference.

However, his disavowal came too late: the anti-Catholic party in the convention had found time to organize themselves, and when the intended Reform Bill took shape it was known that the admission of Roman Catholics to the franchise was not to form part of the scheme.

In the galleried court, paired Ionic columns flank niches containing busts of the Roman Emperors, above a rusticated arcade, a reworking of Bramante's scheme for the " House of Raphael ", in Via Giulia, Rome.

And after sketching a scheme for increasing the number of diocesan schools where Roman Catholics might receive free education, he went on to urge that

Based on a suggestion from Johannes Kepler in October 1613, he also generated a naming scheme so that each moon was given its own name based on the lovers of the Greek mythological Zeus or his Roman equivalent, Jupiter.

Edinbarnet Junior Secondary and Primary schools were built to the north of the scheme and the Roman Catholic school, St Joseph's Primary, built on Faifley Road.

* 1991: ITRANS encoding scheme developed by Avinash Chopde allows Hindi documents in Roman and Devanagari on the Internet.

* View Unicode Hindi through Roman transliteration ( ITRNS scheme )

Beginning in the 1940s and continuing into the 1960s, Quebec Premier Maurice Duplessis, in cooperation with the Roman Catholic Church which ran the orphanages, developed a scheme to obtain federal funding for thousands of children, most of whom had been " orphaned " through forced separation from their unwed mothers.

The work is planned with special reference to Germany ; but in fact its scheme embraces the whole of the Roman Catholic organization in its principles and practice.

Even before the introduction of the scheme, there was some disquiet among the Roman Catholic Church and medical profession.

A scheme whereby the children of Irish strikers would be temporarily looked after by British trade unionists was blocked by the Roman Catholic Church, who protested that Catholic children would be subject to Protestant or atheist influences when in Britain.

Justinian's scheme for a renovatio imperii ( renewal of the empire ) included, as well as ecclesiastical matters, a rewriting of Roman law in the Corpus Juris Civilis and an only partially successful reconquest of the West, including the city of Rome.

The names of all seven satellites of Saturn then known come from John Herschel ( son of William Herschel, discoverer of the planet Uranus, and two other Cronian moons, Mimas and Enceladus ) in his 1847 publication Results of Astronomical Observations made at the Cape of Good Hope, wherein he suggested the names of the Titans, sisters and brothers of Cronos ( Saturn, in Roman mythology ), be used.

From the end of the 19th century, dozens of much smaller Jovian moons have been discovered and have received the names of lovers, conquests, or daughters of the Roman god Jupiter, or his Greek predecessor, Zeus.

The names Io, Europa, Ganymede, and Callisto became popular in the 20th century, while the rest of the moons, usually numbered in Roman numerals V ( 5 ) through XII ( 12 ), remained unnamed.

With Ptah Hotep ( 1971 ) and Nefer ( 1978 ), he wrote a heroic-fantasy saga that takes place on a parallel Earth with two moons — Athenade and Thana — during the time of Ancient Egypt and the Roman Empire.

Other moons of Neptune are also named for Greek and Roman water gods, in keeping with Neptune's position as god of the sea: either from Greek mythology, usually children of Poseidon, the Greek Neptune ( Triton, Proteus, Despina, Thalassa ); classes of minor Greek water deity ( Naiad, Nereid ); or specific Nereids ( Halimede, Galatea, Neso, Sao, Laomedeia, Psamathe ).

By the first decade of the 20th century, the names Io, Europa, Ganymede, and Callisto had once again recovered popularity, but the later-discovered moons, numbered, usually in Roman numerals V ( 5 ) through XII ( 12 ), remained unnamed.