Around the outside of the wall of the great temple, between the points marked A and B on plan, there extend two bands of a kind of chevron pattern, formed, as will be seen from the illustrations, by placing stones on their edges. This pattern seems to have been [[160]]symbolical of fertility, and it extends along the part of the wall which receives directly the rays of the sun when rising at the summer solstice. It reminds one of the Egyptian hieroglyphic symbol for water, and of how naturally the idea of water would be associated with fertility in the mind of a solar worshipper. It also resembles the symbol for the zodiacal sign of Aquarius, and we might suppose that the temple was built when the sun was in this sign of the zodiac at the summer solstice, did such a supposition not carry us back to too remote a period. Besides, the sun is generally believed to have been in Capricornus at the December solstice at the period at which the zodiac was invented, and when its signs received their names.
One hundred and seven and four-fifths feet from A and the same distance from K and from B is the centre of the arc AK, and at this point is some ruined masonry which seems once to have formed an altar. Zimbabwe is in South latitude 20° 16′ 30″, and consequently the sun, when rising there at the summer solstice, would bear East 25° South were the horizon level. But Mount Varoma interposes itself between the temple and the rising sun at this time, so that the sun attains an altitude of 5° before its rays reach the temple. Then its amplitude will be more nearly 24°, and a line produced in this direction from the altar will pass across the doorway of the sacred enclosure, where the curve of the wall changes its radius, and, roughly speaking, through the middle [[161]]of the chevron pattern. The same line drawn in an opposite direction for seventy-three feet would fall on a tall monolith which we there found lying by its well-built foundation. Where the pattern ends at A and B the rays of the sun are nearly tangential to the wall, so that all parts of the wall, and those parts only, which receive the direct rays of the sun when rising at the summer solstice are decorated by this symbolical pattern.
The sun’s rays would not fall on the altar at this time, and it seems strange to have an altar devoted to solar worship under the shadow of a wall; but the same objection would apply to every part of the interior of the temple, and we can hardly suppose that the priests at Zimbabwe performed their ceremonies of worship outside of the temple, as some tribes of Arabs do with some stone circles at the present day, neither is there any sign of such ceremonies having been performed on the top of the broad wall. The monolith, seventy-three feet from the altar, was sufficiently tall to receive the rays of the sun when it rose over Mount Varoma, and the shadow of a monolith erected on the wall at K would fall on it at the same time, thus marking with great accuracy the occurrence of the solstice. Monoliths had been erected at intervals along the decorated part, and only on this part, of the wall, and these may have served to indicate other periods of the year in a similar way.
Near the top of the great tower, which at present [[162]]stands thirty-two feet high, there is a dentelle pattern, which may be described as a chevron pattern laid on its side, and which resembles a common Egyptian pattern. This extends partly round the tower, but it is impossible to determine its aspect with accuracy as so much of it has fallen away. It seems, however, to have faced the setting sun at the winter solstice.
At the temple at the east end of the fortress on the hill similar means are provided for observing the summer solstice. Only a small part of the decorated wall remains, the middle part, which was of great height, having fallen, so that we do not know how far the decoration may have extended towards the south. On the other side it terminates at the doorway, which is placed close to the high cliff which forms the northern side of the temple. We discovered the altar, with several phalli and many little terracotta images of the solar disc lying near it, and some among the stones of the altar. This altar is not at the centre of the arc, but is placed ten feet nearer the rising sun at the solstice, and its position seems to be due to the position of the break in the cliff, which is true north of the altar, so that the meridian can be observed through this passage from the altar in its actual position, and it could not have been observed from the altar were it placed at the centre of the arc. It was impossible to describe the arc with the altar as its centre owing to the position of some rocks which would have interfered with the building of the wall. At the summer solstice the sun [[163]]rises here on a level horizon and bears East 25° South, and a line drawn from the altar in this direction passes through the pattern, and continued for ten feet in the opposite direction it would fall on the centre of the arc.
The great curved wall at the western end of the fortress, which is surmounted by little round towers and erect monoliths, faces the setting sun at the winter solstice. If we suppose the altar was placed here, we have on an eminence marked A, fifty feet true north of the altar, a tall monolith which would enable the meridian transits of northern stars to be observed from the altar, and a line drawn from this altar towards the setting sun at the winter solstice would seem to have passed through the middle of the line of towers and monoliths. This great wall is not so well built as the walls at the eastern temple, and it seems probable that it is a restoration of an old wall which was originally parallel to this, and whose foundations we discovered as already mentioned. Possibly on the original wall the round towers and monoliths were aligned between the altar and the setting sun at certain definite periods of the year. At present they do not seem to mark any important periods, but the position of the setting sun at the summer solstice is well marked by a round tower on the wall overhanging the high cliff, and this is undoubtedly a wall of the best period.
At this western end of the fortress we have two instances of parts of walls which faced the setting [[164]]sun at the winter solstice being decorated by a dentelle pattern.
The disposition of the ornamental patterns on the little round ruin at the Lundi River is interesting. It faces the rising sun at the winter solstice, but the place had been inhabited by Kaffirs, and all vestige of an altar, if it ever existed, had been destroyed. The nature of the patterns here is different from that of those at Zimbabwe. The one near the top of the wall is composed of two rows of little squares alternating with blank spaces, and a little way below this are two rows of a herring-bone pattern. There is a curious rounded protuberance on the outside of the wall, and the herring-bone pattern stops at this point, but the other extends right round to the south-eastern doorway.
This temple is similar in many ways to the partly circular one north-west of the great tower at Zimbabwe. They have both the same diameter and they each have two doorways which are in somewhat similar positions, although the temple at the Lundi is oriented towards the rising sun at the winter solstice, and the other, if it ever had a pattern, would have had it facing the setting sun at this solstice.
The dentelle pattern on the great tower seems to have been oriented towards the setting sun at the winter solstice, and the centre of the partly circular temple at G is roughly in a line between the centre of the tower and the sun at this time. When the sun is rising at the summer solstice G will be behind the [[165]]tower and in the middle of its shadow, in a position analogous to that of the altar behind the arc AK. The direction of the wall at the north-eastern extremity of the arc of which G is the centre is towards the rising sun at the winter solstice, and its inner side points past the centre of the arc AK[2] towards the point of the outer wall which is in a straight line between the altar and the sun when it rises at this solstice. The wall at the other extremity of the arc points to the rising sun at the other solstice.