At intervals of a little less than 50 centimeters as the
podium walls rose they were
rebated, each rebate setting the wall back about 5 centimetres. These rebates or
gradins,
sometimes up to seven, were often topped with flat slate- like stones forming a shelf or
string-course. This design was perhaps inspired by the same architectural tradition
illustrated in the pre-Aksumite period at the Grat-Beal-Guebri and the temple at Yeha
(Anfray 1972ii: 58). It not only narrowed the walls as they rose higher, but assisted the
run-off of rain from the surfaces of the walls, and thus protected the mud- mortar to some
extent. The rebated walls with re-entrants and salients are one of the chief distinguishing
marks
of Aksumite architecture, and apart from their reinforcing function they would
have enhanced the appearance of the massive podia of the palaces and mansions by
breaking up the solidity of their mass with light and shadow. A wall at the structure
called Enda Sem`on was remarkable in that it had not only five surviving rebates, but the
wall above was preserved for a further 1.80m, including a blocked-up window with a
stone lintel (Munro-Hay 1989).
Most of the surviving podium walls of these Aksumite structures were furnished at all
corners with large and carefully cut granite corner blocks, which protected, linked, and
supported the weaker parts of the walls. Occasionally a podium might be strengthened by
a complete
row of cut granite blocks, as still visible at Dungur and in the Aksumite part
of the Maryam Tseyon cathedral podium. Granite was also used for architectural features
such as columns, bases and capitals, doors, windows, paving, and the like, and
particularly for the massive flights of steps which sometimes flanked two or three sides of
the pavilions. A good deal of this stonework consisted of undecorated but well-dressed
blocks, but some of the doorway blocks, or the columns and their bases and capitals, were
decorated with a variety of designs.
A thick lime plaster was noted on the walls of one room in the large tomb called the
Mausoleum at Aksum (Munro-Hay 1989), and similarly appears
on a chamfered column
at Maryam Nazret. Lime mortar has also been observed fixing stones on the podium of
the Aksumite church at Agula, but it does not appear to have been regularly used.
At Adulis the main construction material was porous basalt (the same material was used
for the stele at Adulis which Kosmas saw behind the marble throne there, lying broken
into two pieces — Wolska-Conus 1968: 364) or sandstone. Polygonal blocks of basalt
were used for walls, and cut cubes were assembled to form square columns. During the
excavations at Adulis, Paribeni (1907: 464) was puzzled by the lack of doors and
windows in walls he was able to clear up to a height of 3.40m.
He concluded that they
must only represent foundations, and this was in a measure true, since the buildings rose
on podia as indicated by the excavations at Matara and Aksum. Among the structures
which Paribeni cleared was one which he called the Ara del Sole, Altar of the Sun,
because of a number of designs which he interpreted as hills and sun-discs carved on
bluish marble plaques destined for fixing to the walls. A church had been built on top of
the original podium, but the latter conformed in all other ways to the usual Aksumite
style.
A second
type of architecture, though similar in most essentials to that already described,
employed wooden beams as a strengthening element within the walls. A square
horizontal beam set in the wall supported rounded cross- members embedded in the
stonework and forming ties across the width of the walls. The ends of these cross-
members projected from the external wall (and were sometimes visible internally as well)
in rows, forming the characteristic `monkey-heads' often seen fossilised in stone in other
examples of Ethiopian architecture. Doors and windows were constructed by a similar
method, the openings being framed on all four sides and linked by cross members
through the thickness of the walls; but the `monkey-heads' are square. Most of these
features were carved in granite on the decorated stelae, and some can still be seen in the
surviving ancient rock-cut or built churches of Tigray and Lalibela (Buxton and
Matthews 1974; Plant 1985; Gerster 1970). The framed doors
and windows appear as a
repeated motif in some of these later structures, and have been dubbed the `Aksumite
frieze', since they appear on the decorated stelae there (Plant 1985: 17, 20). However, the
simple lintel was also known and employed, for example over the doorway of the East
Tomb at Aksum and over a window at Enda Sem`on (Munro-Hay 1989).
Illustration 21. The lower part of the still-standing decorated stele at Aksum, showing the
imitation in stone of wooden architectural elements.
Illustration 22. Apparently created long after the Aksumite period, the churches of
Lalibela still employed the same general style of architecture, including imitation beam-
ends in stone.
It is possible that the original inspiration for the design of the decorated stelae came from
the South Arabian mud-brick multi- storey palaces familiar to the Aksumites from their
involvements
in that country, rather than from Ethiopian examples. On some of the
Aksumite podia there could conceivably have been erected high tower- like structures of
mud-brick around a wooden frame, such as that found at Mashgha in the Hadhramawt
(Breton et al. 1980: pls. VIII, X) looking rather like the great stelae. But no evidence for
such Yemeni-style buildings actually survives in Ethiopia, nor is there any archaeological
indication there for mud-brick architecture. Alternatively, and more probably, the stelae
could have been exaggerated designs
based on the Aksumite palaces; and here there is
archaeological support, since the structure called the `IW Building' partly cleared by the
excava tions of Neville Chittick (Munro-Hay 1989), included just such wood-reinforced
walls. Though the load-bearing strength of the rough stone and mud mortared walls is
apparently very considerable, it seems most likely that these buildings would have been
in reality limited to only two storeys above the podia. Evidence that the pavilions and
some of these outer ranges were more than one storey high is provided by the occasional
staircases which have been found. The central pavilions of Aksumite palaces were
completely surrounded by ranges of subsidiary structures, pierced here and there by
gateways and doors. Each ensemble must have formed
very much the sort of thing
mentioned by the sixth-century merchant Kosmas, who speaks of the `four-towered
palace of the king of Ethiopia' (Wolska-Conus 1973). The recessed central parts of each
facade may have reached a storey less in height than the corner salients, giving the
impression of towers (as shown on the reconstructions). Kobishchanov's eight-storied