Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.
|
See also:SECTION OF See also:ANGLE certum and (B)See also:Opus Re- facing . ticulatum . C shows the See also:section, similar in both . Of See also:concrete walls faced with burnt bricks no dated example earlier than the See also:middle of the 1st See also:century B.c. is known . The facing Bi.kk consisted at first of triangular fragments of tiles (tegulae), lacing. broken for the purpose and more or less irregular in shape and See also:size, but from the latter See also:part of the 1st century A.D. onwards triangular bricks were specially manufactured for See also:wall-facings . This shape was adopted in See also:order to See also:present a large See also:surface on the See also:face with little See also:expenditure of See also:brick, and also to improve the See also:bond with the concrete behind (see fig . 4) . Even party walls of small rooms are not built solid, but have a concrete core faced with brick triangles about 3 in. See also:long . In order to support the facing until the concrete was set, the See also:Roman builders used a wooden framing covered with planks on the inside . Sometimes the planks were nailed outside the wooden uprights, as was done with unfaced concrete walls, and then a See also:series of grooves appear in the face of the See also:brickwork . Walls faced with opus reticulatum must have been supported temporarily in the same way . The See also:character of the brick facing is a See also:great help towards deter-See also:mining the date of Roman buildings .
In See also:early See also:work the bricks are thick and the See also:joints thin, while in later times the See also:reverse is the See also:case, so that brickwork of the See also:time of See also:Severus and later has more bricks to the See also:foot than that of the See also:Flavian See also:period
.
The length of the bricks as it appears on the face is no See also:guide to the date, since one or more of the See also:sharp points of the brick triangles were frequently broken off before they were used
.
Moreover
.
i The expansion of the See also:iron through See also:rust, which caused the See also: Under Concrete the Empire the concrete used was made with travertine walls and or lava for See also:foundations, with tufa or broken bricks for vaults . walls, and with tufa or See also:pumice-stone (for the See also:sake of lightness) for vaults . Massive walls were See also:cast in a See also:mould; upright timbers, about 6 by 7 in. thick and 10 to 14 ft. long, were set in rows on each face of the future wall; planks 9 to 10 in. wide were nailed to them, so as to form a case, into which the semi-fluid See also:mass of stones, lime and pozzolana was poured . When this was set the timbers were re-moved and refixed on the See also:top of the concrete wall; then fresh concrete was poured in; and this See also:process was repeated till the wall was raised to the required height . Usually such cast-work was only used for foundations and See also:cella walls, the upper parts being faced with brick; but in some cases the whole wall to the top was cast in this way and ; %t 4 1. p. u1Fe the brick facing omitted . In strength and dura- FIG . 4.—Example of Marble Lining, from bility no See also:masonry, how- the Cella of the See also:Temple of See also:Concord . ever hard the stone or A . Slabs of Phrygian marble . B . large the blocks, could See also:Plinth moulding of Nuruidian ever etge l these walls ,of giallo." C . Slab of cipollino concr when made w hard lava or travertine, (Carystian marble) . D . Paving for each wall was one and a"u dus " of concrete bedding . perfectly coherent mass, G, G . Iron clamps run with See also:lead to and could only be de- See also:fix marble lining . H . Bronze clamp . stroyed by a laborious J See also:Cement backing . process like that of See also:quarrying hard stone from its native See also:bed . Owing to this method of See also:building the progress of the work from See also:day to day can often be traced by a See also:change in the look of the concrete . About 3 ft. appears to have been the See also:average amount of wall raised in a day . Marble linings were fixed very firmly to the walls with long clamps of metal, hooked at the end so as to hold in a hole made in the marble slab . Fig . 4 gives an example, of the time of marble Augustus, fixed against a stone wall . The blocks were mange . usually marked in the See also:quarry with a number, and often with with the names of the reigning See also:emperor and the overseer of the quarry . These quarry-marks are often of great value as indications of the date of a building or statue.' See also:Metropolitan Some of the bricks are as much as 21 in. thick, while 1; in. is the usual maximum for Roman bricks . The Roman method of applying stucco to walls with a wooden " See also:float " exactly as is done now, is shown in a See also:painting from See also:Pompeii (see See also:Ann . Inst., 1881, pl . H.) . See Bruzza, in Ann . Inst . (1870), pp . 106-204; Hirschfeld, See also:Die kaiserlichen Verwaltungsbeamten (1905), pp . 162 if . building acts, not unlike those of modern See also:London, were enacted by several of the emperors . These fixed the materials to be used,• thickness of walls, minimum width of streets, maximum height allowed for houses, &c . After the great See also:fire in Nero's reign, A.D . 64, an See also:act was passed requiring the See also:lower storeys of houses to be built with fire-See also:proof materials, such as See also:peperino or burnt brick . Enormous accumulations of statues and pictures enriched See also:Rome during its period of greatest splendour . In the first See also:place, the numerous statues of the republican and even of the See also:regal See also:Ancient period were religiously preserved at a time when, from See also:works of their archaic character, they must have been regarded See also:art, rather as See also:objects of sacred or archaeological See also:interest than as works of art (Plin . H.N. xxxiv . 15 if., See also:xxxv . 19 ff.) . Secondly came the large Graeco-Roman class, mostly copies of earlier See also:Greek works, executed in Rome by Greek artists . To this class belongs most of the finest existing See also:sculpture preserved in the Vatican and other museums . Thirdly, countless statues and pictures were stolen from almost every important See also:city in See also:Greece, Magna Graecia, See also:Sicily and western See also:Asia See also:Minor . These robberies began early, and were carried on for many centuries . The importations included works of art by all the See also:chief artists from the 5th century downwards . Long lists are given by See also:Pliny (H.N. xxxiii.–See also:xxxvi.), and pedestals exist with the names of See also:Praxiteles, Timarchus, See also:Polyclitus, See also:Bryaxis and others . These accumulated works of sculpture were of all materials—See also:gold and See also:ivory (See also:Suet . Tit . 2), of which seventy-four are mentioned in the See also:catalogue of the Breviarium, many hundreds or even thousands of See also:silver' (Plin . H.N. xxxiii . 151 f.),' while those of gilt bronze and marble must have existed in almost untold See also:numbers (Pans. viii . 46) . Nor were the accumulated stores of Greek paintings much inferior in number; not only were easel pictures by Zeuxis, See also:Apelles, See also:Timanthes and other Greek artists taken, but even mural paintings were carefully cut off their walls and brought to Rome secured in wooden frames (Plin . H.N. xxxv . 173, and compare ibid . 154) . The roads were made of polygonal blocks of lava (silex), neatly fitted together and laid on a carefully prepared bed, Roads. similar to that used for See also:mosaic paving (see MOSAIC' and ROADS) . Roads thus made were called viae stroke . A See also:good specimen of Roman road-making, in which the blocks were fitted together with the utmost accuracy, is to be seen in a portion of the Clivus Capi- tolinus in' front of the temple of See also:Saturn (see fig . 5, which also shows the massive travertine curb which bordered the road; sometimes the curb was of lava) . In 190I the See also:late and badly laid See also:pavement of the Sacra Via on the ascent of. the See also:Velia was removed, and the earlier paving laid See also:bare at a lower level . The See also:original pavement of the Nova Via was ex ,over. posed in 1904 . Other well-preserved viae stratae are those leading up to the See also:Palatine from the Summa Sacra Via and that which follows the curved See also:line of shops in See also:Trajan's See also:forum . The following is a See also:list of the chief roads which radiated from Rome:—(1) Via See also:Appia issued from the Servian See also:Porte See also:Capena and the See also:Aurelian P . Appia; from it diverged (2) Via See also:Latina, which issued from the Aurelian P . Latina; (3) Via See also:Labicana and (4) Via See also:Tiburtina issued from the Servian P . Esquilina; from (3) diverged (5) Via See also:Praenestina at the See also:double See also:arch of the Claudian See also:aqueduct, now P . See also:Maggiore, while (4) passed through the Aurelian P . Tiburtina; (6) Via See also:Nomentana and (7) Via See also:Salaria issued from the Servian P . Collina and passed respectively through the Aurelian P . Nomentana and . P . Salaria; (8) Via See also:Flaminia issued from the Servian P . Fontinalis, and was called Via Late for the first See also:half-mile or more, 1 Eighty silver statues of Augustus, some equestrian and 'some in quadrigae, are mentioned in the Mon . Anc . 4, 51.then passed through the Aurelian P . Flaminia; (9) Via See also:Aurelia, from the Transtiberine P . Aurelia; (to) Via Portuensis, from the Transtiberine P . Portuensis; (11) Via Ostiensis, from the Servian P . Trigemina and the Aurelian P . Ostiensis; (12) Via Ardeatina, from the Servian P . Naevia and the Aurelian P . Ardeatina . Remains of Prehistoric Rome . It is evident from See also:recent discoveries that the site of Rome was inhabited at a very early period.2 See also:Flint implements and remains of the Bronze See also:Age have been found on the Aventine and elsewhere; and from the Early Iron Age onwards we have a continuous archaeological See also:record, owing to the See also:discovery of ancient See also:burial-places . In 1902 a very early See also:necropolis was brought to See also:light at the S.E. corner of the temple of See also:Antoninus and See also:Faustina, some 17 ft. below the level of the Forum . The See also:graves contain either the ashes of cremated bodies placed in a large See also:vessel (dolio), or skeletons buried either in a See also:simple See also:trench (fossa), a. tufa See also:sarcophagus or a See also:tree-See also:trunk . The See also:cremation graves are the earlier, and none are later than the 6th century, while the See also:oldest may be of the 9th; the pottery and other objects placed in the graves belong to the Early Iron Age . It is clear that this See also:cemetery is earlier than the See also:union of the Palatine and Quirinal settlements in one city (see below, p . 759) . Other early cemeteries have been discovered on the Quirinal and Esquiline, which were in use from the beginning of the Iron Age down to the beginning of the historic period .
The large necropolis on the Esquiline is cut in two by the Servian " wall, which is evidently of later date
.
The later tombs contain objects of See also:Etruscan, Phoenician and Greek manufacture
.
There is no doubt that the earliest See also:settlement bearing the name of Rome was on the Palatine See also: But this was of course not a defensible site, and the extent of the fortified city can only be determined by the traces of its early walls . These enable us to fix its line along the whole valley of the Velabrum, on the See also:west of the hill, and along the valley of the Circus Maximus as far as the so-called Paedagogium, about half-way' on the See also:south See also:side . Considerable remains of this fortification exist near the west angle of the hill . These show that the natural strength given by the cliff was increased by artificial means . The wall was set neither at the top nor at the foot of the hill, but more Ancient than half-way up, a level See also:terrace or shelf all See also:round being fortift- cut in the See also:rock on which the See also:base of the wall stood . Above cations." that the hill was cut away into a cliff, not quite perpendicular but slightly " battering " inwards, to give greater stability to the wall, which was built up against it, like a retaining wall, reaching to the top of the cliff, and probably a few feet higher . The stones used in this wall are soft tufa, a warm brown in colour, and full of masses of charred See also:wood . The cutting to form the steep cliff probably supplied part of the material for the wall; and ancient quarries, afterwards used as reservoirs for See also:water, exist in the mass of rock on which the so-called temple of See also:Jupiter See also:Victor stands . It has been asserted that these tufa blocks are not cut but split with wedges; this, however; is not the case . Tufa does not split into rectangular masses, but 2 On the prehistoric remains of Rome and See also:Latium, see Pinza in Monumenti antichi pubblicati per cure della reale Accademia dei Lin,cei, vol. xv., 1905; also See also:Comm . See also:Boni's reports on the necropolis adjoining the Forum in the Notizie degli scavi, and Modestor, Introduction a l'histoire romaine (See also:Paris, 1907) . a The " primacy of the Palatine " has been disputed by See also:Carter (Amer . Jour . Arch., 1908, p . 181), who thinks that the first city was that of the Four Regions (see below) formed by the Etruscan See also:kings . Li . . . QiI,~IVII1 to au'tl~iidfln i~lhllii1]IT~Iri gym."~i 111 e. a. a. z . ,.o would be shattered to pieces by a See also:wedge; moreover, distinct See also:tool-marks can be seen on all the blocks whose surface is well pre-served and in the quarries themselves . See also:Chisels from one-See also:fourth to three-fourths of an See also:inch in width were used, and also a sharp-pointed pick or See also:hammer . The wall is about to ft. thick at the bottom, and Increases in thickness above as the scarped cliff against which it is built recedes . It is built of blocks laid in alternate courses of headers and stretchers, varying in thickness from 22 to 24 in., in length from 3 to 5 ft. and in width from 19 to 22 in . These blocks are carefully worked on their beds, but the face is See also:left rough, and the See also:vertical joints are in some cases open, spaces of nearly 2 in. being left between See also:block and block; in other cases the vertical joints are worked true and See also:close like the beds . No mortar was used .
At two points on the side of the Velabrum winding passages are excavated in the tufa cliff, the entrance to which was once closed by the ancient wall
.
One of these in early times (before water in abundance was brought to the Palatine on aqueducts) was used as a See also:reservoir to collect surface water, probably for use in case of See also:siege; circular shafts for buckets are cut downwards through the rock from the top of the hill
.
A similar rock-cut cistern with vertical shafts, of very early date, exists at See also:Alba Longa
.
Opposite the See also: Iii . 66) tells us that the city of See also:Romulus had three See also:gates (cf . Serv . Ad . Aen. i . 222); and three approaches to the See also:Oates of Palatine city can be traced . One is the so-called Scalae Roma Caci, a long sloping ascent cut through the rock (see Quadrata. fig . 17) from the side of the Circus Maximus; some remains of the early wall still exist along the sides of this steep ascent or See also:staircase . The upper part of this has remains of a See also:basalt pavement, added in later times, probably covering the more ancient rock-cut steps . The name of the See also:gate which led at this point into the Palatine city is unknown . The only two gates whose name and position can be (with any degree of See also:probability) identified are the Porta Romanula and the Porta Mugonia . The former of these is called Porta See also:Romana by See also:Festus (ed .
See also: The Palatine settlement was the See also:nucleus around which, by a series of expansions, the See also:historical city of Rome See also:grew up . The first step Growth was the amalgamation of Roma Quadrata with the villages Greatly on the neighbouring spurs of the Esquiline and Caelian . Rome . This gave See also:birth to the community of the Seven Hills, whose existence is proved by the survival of the festival known as the Septimontium, celebrated on the 11th of See also:December (Fest . 340; Macrob. i . 16, 6) . The seven hills were not those See also:familiar in later nomenclature, but the following:—(1) Palatium and (2) Cermalus, the two summits of the Palatine; (3) Velia, the See also:saddle between the Palatine and Esquiline; (4) See also:Oppius and (5) Cispius, the two westernmost spurs of the Esquiline, together with (6) Fagutal, the extreme See also:crest of the Oppius; (7) Sucusa (confused by later writers with Subura), the eastern See also:spur of the Caelian . Varro (L.L. v . 48) mentions the murus terreus Carinarum, which may have belonged Novalia," See also:MSS . • " Navalia " has been conjectured.to the defences of this community, since the N.W. slope of the Oppius See also:bore the name Carinae ; but there is no proof that the Septimontium was a walled city . The next See also:stage in the development of Rome was marked by the See also:division of the city into four regions, ascribed by tradition to Servius Tullius,' who was said to have formed the four city tribes, corresponding with the regions: (t) Suburana, including the Caelian and the valley between that hill and the Esquiline; (2) Esquilina, the Oppius and Cispius; (3) Collina, the Quirinal and Viminal; (4) Palatina, including the Palatine and Velia . The third region was an addition to the City of the Seven Hills; the new city was, in fact, formed by the union of the old Latin settlement with a See also:Sabine community on the Quirinal . The Capitol was the citadel, but was not included in the city (hence the phrase urbs et Capitolium) . Tradition likewise assigned to Servius Tullius 3 the construction of the great wall which embraced not merely the four regions but a considerably extended See also:area, including the Aventine . Liae of Excavations have done much to determine the line of the Servtaa Servian wall, especially the great works undertaken in laying wall . out a new See also:quarter of the city on the Quirinal, Esquiline and Viminal, which have laid bare and then mor.1y destroyed long lines of wall, especially along the agger . Beginning from the Tiber, which the Servian wall touched at a point near the present See also:Ponte Rotto, and separating the Forum Holitorium (outside) from the Forum Boarium (inside), it ran in a straight line to the Capitoline hill, the two crests of which, the Capitolium and the Arx, with the intermediate valley the See also:Asylum, were surrounded by an earlier fortification, set (Dionys. ix . 68) furl XO4ioic . sal AErpaIS 6. ror6µots In this space there were two gates, the Porta Flumentana, next the river (see Cie . Ad Att. vii . 3; Liv. xxxv . 19, 21); and the Porta Carmentalis close to the Capitolium.4 From the Capitoline hill the wall passed to the Quirinal along a spur of elevated ground, after-wards completely cut away by Trajan . Close to the Capitol was the Porta Fontinalis, whence issued the Via Lata . Remains of the wall and foundations of the gate exist in Via di Marforio . After passing Trajan's forum, we find remains of the walls on the slope of the Quirinal . A piece di the wall has been exposed in the new Via Nazionale, and also an archway under the Palazzo See also:Antonelli, which may represent the Porta Sanqualis (see Festus, ed . Muller, p . 343) . The Porta Salutaris (Festus, pp . 326-327) was also on the Quirinal, probably on the slope between the Trevi See also:fountain and the royal See also:palace . Its position is indicated by the existence of some tombs which give the line of the road . On the See also:north-west of the Quirinal was the Porta Quirinalis (Festus, p . 254), probably near the " Quattro See also:Fontane." In the See also:Barberini palace gardens, and especially in those of the See also:Villa Barberini (Horti Sallustiani), extensive remains of the wall have been recently exposed and destroyed,-which was also the See also:fate of that See also:fine piece of wall that passed under the new See also:office of See also:finance, with the Porta Collina, which was not on the line of the present road, but about 50 yds. to the south (see Dionys. ix . 68; See also:Strabo iv. p . 234) . Thus far in its course from the Capitol the wall skirted the slopes of hills, which were once much more abrupt than they are now; but from the Porta Collina to the Porta Esquilina it crossed a large See also:tract of level ground; and here its place was taken by the great agger-described below . About the middle of it the Porta Viminalis was found in 1872; it stood, as Strabo (iv. p . 234) says, ,hr zfvtu ref.; XW arc, and from it led a road which passed through the Porta Chiusa (ancient name unknown) in Aurelian's wall . Foundations of the Porta Esquilina were found in 1875 close behind the arch of See also:Gallienus . The, further course of the wall across the valley of the Colosseum is the least known part of the See also:circuit . Hence the- wall skirts the slopes-of the 'Caelian (where, as is probable, it was pierced by the Porta Caelemontanaand Porta Querquetulana) to the valley along which the Via Appia passed through the Porta Capena, near the church of S . Gregorio . Its line along the Aventine is fairly distinct; and near S . Balbina and in the Vigna Torlonia are two of the best-preserved pieces (see below) . There were three gates on the Aventine,—the Porta Naevia on the See also:southern height, P . Raudusculana in the central depression, and P . Lavernalis on the See also:northern See also:summit . Under the Aventine it appears to have touched the river near the existing foundations supposed to be those of the Pons Sublicius . The Porta Trigemina was close by the See also:bank . Hence to our starting-point the river formed the defence of the city, with its massive See also:quay wall . The wall is built of blocks of tufa, usually the softer kinds, but varying according to its position, as in most cases the stone used was that quarried on the spot . In restorations a good Iis coadeal of peperino is used . The blocks average from 23 to stroctlon . 24 in . In thickness—roughly 2 Roman feet--and are laid in alternate courses of headers and stretchers . The method of construction varied according to the nature of the ground Varro, L.L. v . 46-54 . 3 Livy i . 44; See also:Dion . See also:Hal. iv . 13 . The wall is, however, said to have been planned and partly executed by Tarquinius See also:Priscus (Liv. i . 36, 38; Dion . Hal. iii . 37) ; and the fortification of the Aventine is ascribed to Ancus See also:Martius (Dion . Hal. iii . 43) . 4 See Sol. i . 13; Liv. ii . 49, See also:xxiv . 47, See also:xxv . 7. See also:xxvii . 37; Ascon . Ad . Cie. in Toga, p . 81 . 590 traversed by the fortification . Where the wall followed the face of the cliffs, as for instance on the Capitol and Quirinal, it was raised on an artificial shelf after the See also:fashion employed on the Palatine (vide supra) . In other places, where the slope was gentler, the wall was formed of See also:rubble with revetments of opus quadratum, e.g. on the Aventine; finally, where the ground was See also:flat, as on the See also:plateau of the Esquiline, a ditch was dug and an See also:embankment formed by the upcast; this agger, as it was called, was then faced with retaining walls of opus quadratum . The length of the agger on the Esquiline is put by See also:Dionysius (ix . 68) at 7 stadia, which agrees, roughly speaking, with the discoveries made in 1876-1879, when the railway station was built and the new quarters laid out . The See also:total length was about 4225 ft., the thickness of wall and agger about 5o ft., while the ditch was too Roman ft. in width and 30 in See also:depth . There is, however, a difference in technique between the inner and See also:outer retaining walls of the agger . The inner wall is built of greenish tufa in blocks of irregular size, while in the outer brown tufa is employed and the blocks are of |