The simplest church building comprises a single meeting space, built of locally available material and using the same skills of construction as the local domestic buildings. Such churches are generally rectangular, but in African countries where circular dwellings are the norm, vernacular churches may be circular as well. A simple church may be built of mud brick,
wattle and daub, split logs or rubble. It may be roofed with thatch, shingles, corrugated iron or banana leaves. However, church congregations, from the 4th century onwards, have sought to construct church buildings that were both permanent and aesthetically pleasing. This had led to a tradition in which congregations and local leaders have invested time, money and personal prestige into the building and decoration of churches. Within any parish, the local church is often the oldest building and is larger than any pre-19th-century structure except perhaps a barn. The church is often built of the most durable material available, often dressed stone or brick. The requirements of liturgy have generally demanded that the church should extend beyond a single meeting room to two main spaces, one for the congregation and one in which the priest performs the rituals of the Mass. To the two-room structure is often added aisles, a tower,
chapels, and
vestries and sometimes transepts and mortuary chapels. The additional chambers may be part of the original plan, but in the case of a great many old churches, the building has been extended piecemeal, its various parts testifying to its long architectural history.
Beginnings In the first three centuries of the
Early Livia Christian Church, the practice of Christianity was illegal and few
churches were constructed. In the beginning, Christians worshipped along with Jews in
synagogues and in private houses. After the separation of Jews and Christians, the latter continued to worship in people's houses, known as
house churches. These were often the homes of the wealthier members of the faith.
Saint Paul, in his
first letter to the Corinthians writes: "The churches of Asia send greetings.
Aquila and Prisca, together with the church in their house, greet you warmly in the Lord." Some domestic buildings were adapted to function as churches. One of the earliest of adapted residences is at
Dura Europos church, built shortly after 200 AD, where two rooms were made into one, by removing a wall, and a
dais was set up. To the right of the entrance a small room was made into a
baptistry. Some church buildings were specifically built as church assemblies, such as that opposite the emperor
Diocletian's palace in Nicomedia. Its destruction was recorded thus: When that day dawned, in the eighth consulship of Diocletian and seventh of
Maximian, suddenly, while it was yet hardly light, the prefect, together with chief commanders, tribunes, and officers of the treasury, came to the church in Nicomedia, and the gates having been forced open, they searched everywhere for an idol of the Divinity. The books of the Holy Scriptures were found, and they were committed to the flames; the utensils and furniture of the church were abandoned to pillage: all was rapine, confusion, tumult. That church, situated on rising ground, was within view of the palace; and Diocletian and
Galerius stood as if on a watchtower, disputing long whether it ought to be set on fire. The sentiment of Diocletian prevailed, who dreaded lest, so great a fire being once kindled, some part of the city might he burnt; for there were many and large buildings that surrounded the church. Then the
Pretorian Guards came in battle array, with axes and other iron instruments, and having been let loose everywhere, they in a few hours leveled that very lofty edifice with the ground.
From house church to church From the first to the early fourth centuries most Christian communities worshipped in private homes, often secretly. Some Roman churches, such as the
Basilica of San Clemente in Rome, are built directly over the houses where early Christians worshipped. Other early Roman churches are built on the sites of Christian
martyrdom or at the entrance to
catacombs where Christians were buried. , France, built at the end of the 5th century as an episcopal burial church in the form of an ancient basilica With the victory of the
Roman emperor Constantine at the
Battle of Milvian Bridge in 312 AD, Christianity became a lawful and then the privileged religion of the
Roman Empire. The faith, already spread around the Mediterranean, now expressed itself in buildings. Christian architecture was designed to correspond to the civic and imperial forms of
ancient Roman architecture, because the architects and building craftsmen mastered these forms. The
Aula regia, the typical audience hall of imperial palaces with a throne apse, became the model for
aisleless churches (later developed into
hall churches), whereas the
Basilica building type, with a higher central
nave flanked by two or more lower longitudinal
aisles, commonly used for market halls in the Roman era, became the most widespread building type for churches in the East and West, sometimes with
galleries and
clerestories. While civic basilicas mostly had no apses, or sometimes apses at either end, the Christian basilica usually had a single apse (like the aula regia) where the bishop and
presbyters sat in a dais behind the altar. While pagan basilicas had as their focus a statue of the emperor, Christian basilicas focused on the altar as place of the
Eucharist. Central buildings, often modeled on Roman official buildings, with circular (rotunda - like the
Pantheon, Rome), oval, square, cruciform, hexagonal, octagonal, nonagonal or higher polygonal building shapes, also served as models, for example for the 6th century
Basilica of San Vitale in
Ravenna. The
Roman temple, on the other hand, was only suitable as a design for smaller chapels, as it only had a small cella inside, to which only the priests had access, but not the congregation, as in Christian churches. The first very large Christian churches were built in
Rome in the early 4th century:
Old St. Peter's Basilica,
Basilica of Saint Paul Outside the Walls,
San Giovanni in Laterano,
Santa Maria Maggiore, and in the early 5th century
Santa Sabina (which of Rome's ancient churches has most faithfully preserved its original appearance). In
Ravenna, the temporary ruler's residence shortly before and after the fall of the Roman Empire (476), many early Christian churches were not only newly built but have also been preserved to this day: In the 5th century the
Mausoleum of Galla Placidia and the
Baptistery of Neon were built and in the 6th century the
Basilica of Sant'Apollinare Nuovo,
Basilica of Sant'Apollinare in Classe,
Basilica of San Vitale, the
Arian Baptistery and the
Archbishop's Chapel. In addition to such new church buildings, a number of ancient temples or civil buildings were later converted into churches, especially after the fall of the Roman Empire, for instance the
Pantheon, Rome, the
Temple of Antoninus and Faustina, Rome,
Sant'Adriano al Foro, Rome (the former
Curia Julia), the
Mausoleum of Constantina, Rome,
Santa Maria degli Angeli e dei Martiri (the former
frigidarium and
tepidarium of the
Baths of Diocletian),
Santa Croce in Gerusalemme, Rome (a former
Imperial aula),
Santa Balbina, Rome (the hall of a private palace of
Lucius Fabius Cilo), the
Cathedral of Syracuse (a Greek temple), the
Temple of Minerva, Assisi, the
Maison carrée in
Nîmes, France (a former temple), the
Baptistère Saint-Jean in
Poitiers, France (a former civil building). The early churches distinguished themselves from pagan temples by the simplicity in their execution; a lot of brickwork and little marble, no
plastic arts, no “moving” scenes. The glass mosaics were suggestive (poster function) but made of comparatively cheap material. Depictions of saints like those in Ravenna were deliberately not lifelike, but rather “disembodied”. The outer walls were only lightened up by the partially large windows. It was only later that the upper part of the facade was decorated with mosaics. In much later eras were these basilicas more richly decorated, with magnificent Renaissance ceilings and marble walls, pompous statues and stucco, such as the still standing Roman ones,
Basilica of Saint Paul Outside the Walls,
San Giovanni in Laterano,
Santa Maria Maggiore. The Ravenna
Basilica of Sant'Apollinare in Classe still gives a relatively authentic impression, with the original columns, mosaics and the open beamed ceiling as well as the exterior. File:Roma - Basilica di Santa Balbina all'Aventino - 2024-09-18 14-05-48 001.jpg|
Santa Balbina, Rome (the former hall of a private palace of the 2nd century) File:Rom, Basilika Santa Sabina, Außenansicht.jpg|
Santa Sabina, Rome (built in the early 5th century) File: File:Sant'Apollinare in Classe Ravenna 02-87-edit.jpg|
Basilica of Sant'Apollinare in Classe, Ravenna (built in the early 6th century) File:Basilica of San Vitale.jpg|
Basilica of San Vitale, Ravenna (early 6th century)
Characteristics of the early Christian church building , showing
atrium (courtyard),
narthex (
vestibule), central
nave with double
aisles, a
bema for the clergy extending into a
transept, and an
exedra or semi-circular
apse. The church building as we know it grew out of a number of features of the
Ancient Roman period: • The
house church • The
atrium • The
narthex • The
basilica • The
bema • The
mausoleum: centrally planned building • The
cruciform ground plan: Latin or Greek cross •
Crossing •
Lantern tower Atrium When
early Christian communities began to build churches they drew on one particular feature of the houses that preceded them, the
atrium, or courtyard with a
colonnade surrounding it. Most of these atriums have disappeared. A fine example remains at the
Basilica of San Clemente in Rome and another was built in the Romanesque period at
Sant'Ambrogio, Milan. The descendants of these
atria may be seen in the large square
cloisters that can be found beside many cathedrals, and in the huge colonnaded squares or piazza at the Basilicas of St Peter's in Rome and St Mark's in Venice and the Camposanto (Holy Field) at the Cathedral of Pisa.
Narthex The
narthex is the space in the church through which the faithful can enter the
nave.
Basilica Early church architecture did not draw its form from Roman temples, as they did not have large internal spaces where worshipping congregations could meet. It was the Roman
basilica used for meetings, markets, and courts of law that provided a model for the large Christian church and that gave its name to the Christian
basilica. Both Roman basilicas and Roman
bath houses had at their core a large vaulted building with a high roof, braced on either side by a series of lower chambers or a wide arcaded passage. An important feature of the Roman basilica was that at either end it had a projecting
exedra, or
apse, a semicircular space roofed with a half-dome. This was where the magistrates sat to hold court. It passed into the church architecture of the Roman world and was adapted in different ways as a feature of
cathedral architecture. The earliest large churches, such as the Cathedral of
San Giovanni in Laterano in Rome, consisted of a single-ended basilica with one apsidal end and a courtyard, or
atrium, at the other end. As Christian
liturgy developed, processions became part of the proceedings. The processional door was that which led from the furthest end of the building, while the door most used by the public might be that central to one side of the building, as in a basilica of law. This is the case in many cathedrals and churches.
Bema As numbers of clergy increased, the small apse which contained the altar, or table upon which the
sacramental bread and wine were offered in the rite of
Holy Communion, was not sufficient to accommodate them. A raised dais called a
bema, a concept taken from synagogue architecture, formed part of many large basilican churches. In the case of
St. Peter's Basilica and
San Paolo Fuori le Mura (St Paul's outside the Walls) in Rome, this bema extended laterally beyond the main meeting hall, forming two arms so that the building took on the shape of a T with a projecting apse. From this beginning, the plan of the church developed into the so-called
Latin Cross which is the shape of most Western Cathedrals and large churches. The arms of the cross are called the
transept.
Mausoleum One of the influences on church architecture was the
mausoleum. The mausoleum of a noble Roman was a square or circular domed structure which housed a
sarcophagus. The
Emperor Constantine built for his daughter Costanza a mausoleum which has a circular central space surrounded by a lower ambulatory or passageway separated by a colonnade.
Santa Costanza's burial place became a place of worship as well as a tomb. It is one of the earliest church buildings that was central, rather than longitudinally planned. Constantine was also responsible for the building of the circular, mausoleum-like
Church of the Holy Sepulchre in
Jerusalem, which in turn influenced the plan of a number of buildings, including that constructed in Rome to house the remains of the proto-martyr
Stephen,
San Stefano Rotondo and the
Basilica of San Vitale in Ravenna. Ancient circular or polygonal churches are comparatively rare. A small number, such as the
Temple Church, London were built during the
Crusades in imitation of the Church of the Holy Sepulchre as isolated examples in England, France, and Spain. In
Denmark such churches in the Romanesque style are much more numerous. In parts of Eastern Europe, there are also round tower-like churches of the Romanesque period but they are generally vernacular architecture and of small scale. Others, like St Martin's Rotunda at Visegrad, in the Czech Republic, are finely detailed. The circular or polygonal form lent itself to those buildings within church complexes that perform a function in which it is desirable for people to stand, or sit around, with a centralized focus, rather than an axial one. In Italy, the circular or polygonal form was used throughout the medieval period for
baptisteries, while in England it was adapted for
chapter houses. In France, the aisled polygonal plan was adopted as the eastern terminal and in Spain, the same form is often used as a chapel. Other than Santa Costanza and San Stefano, there was another significant place of worship in Rome that was also circular, the vast Ancient Roman
Pantheon, with its numerous statue-filled niches. This too was to become a Christian church and lend its style to the development of Cathedral architecture.
Latin cross and Greek cross Most cathedrals and great churches have a cruciform
groundplan. In churches of Western European tradition, the plan is usually longitudinal, in the form of the so-called
Latin Cross, with a long
nave crossed by a
transept. The transept may be as strongly projecting as at
York Minster or not project beyond the aisles as at
Amiens Cathedral. Many of the earliest churches of
Byzantium have a longitudinal plan. At
Hagia Sophia, Istanbul, there is a central dome, the frame on one axis by two high semi-domes and on the other by low rectangular transept arms, the overall plan being square. This large church was to influence the building of many later churches, even into the 21st century. A square plan in which the nave, chancel and transept arms are of equal length forming a
Greek cross, the crossing generally surmounted by a dome became the common form in the
Eastern Orthodox Church, with many churches throughout Eastern Europe and Russia being built in this way. Churches of the Greek Cross form often have a
narthex or vestibule which stretches across the front of the church. This type of plan was also to later play a part in the development of church architecture in Western Europe, most notably in
Bramante's plan for
St. Peter's Basilica. ==Divergence of Eastern and Western church architecture==