Senegambian stone circles

The stone circles and other megaliths found in Senegal and Gambia are sometimes divided into four large sites: Sine Ngayène and Wanar in Senegal, and Wassu and Kerr Batch in the Central River Division in Gambia. Among these four main areas, there are approximately 29,000 stones, 17,000 monuments, and 2,000 individual sites. The monuments consist of what were originally upright blocks or pillars (some have collapsed), mostly made of laterite, with smooth surfaces. The monoliths are found in circles, double circles, isolated or standing apart from circles (usually to the east) in rows, or individually. Stones found standing apart are called frontal stones. When there are frontal stones in two parallel, connected rows, they are called lyre-stones. Archaeologists have also found pottery shards, human burials, and some grave goods and metals around the megalithic circles. The construction of the stone monuments shows evidence of a prosperous and organized society based on the amount of labor required to build such structures. The structures share similarities with buildings and funerary practices in several existing cultures, such as the Serer, Konyagui, and Bassari people. Wolof and Fula oral traditions also have the Serer as the builders. The Serer themselves, however, credit them to the Soos wee or Soos waa Kaabu, the 'men from the beginning of Kaabu'. These 'Soos' or 'Sose' are, in Serer oral history, the former occupants of the area, but their ethnolinguistic identity is debated. Some historians believe that they were a group speaking a Mande language who migrated from the Wagadu Empire to flee a drought towards the end of the first millennium CE. According to this theory, the Sose were assimilated or displaced when the Serer of the north arrived in the 11th century, although the newcomers may have adopted their funerary customs. The Serer have used funerary houses similar to those found at the Wanar site up until the present. Another theory holds that the stone circles were built by one or more cultures that were subsequently pushed south across the Gambia by the incoming Serer, Mandinka, and Wolof. The Bassari in particular, who now live in the Kedougou region of southeastern Senegal, still bury important community members in necropolises of stone funerary huts, with construction techniques, burial chambers, and commemoration practices extremely similar to those uncovered at the stone circle sites. ==World Heritage Sites==

The Gambia: • Stone circles of Kerr Batch • Stone circles of Wassu Senegal: • Stone circles of Wanar • Stone circles of Sine Ngayène Wassu Wassu is located in the Niani district of Gambia and is made up of 11 stone circles and their associated frontal stones. The tallest stone is found in this area, with a height of 2.59 meters. The builders of the monuments here possessed great knowledge of their local geology in order to find the sources of laterite stones. They must also have had great technical ability in order to extract these stones without splitting or cracking them. All of the monuments found here seem to mark burials, according to the archaeologists working there. Researchers have also determined that the site was a burial ground first, and the stones were added later for ritual uses. Construction of this area can be narrowed down to between the seventh and fifteenth centuries AD. A 2008 excavation was conducted on the double circle at Wanar, and two types of burials were distinguished: Two types of stones were found at Wanar: tall and slender stones that tended to be cylindrical; and shorter, squatter, trapezoidal stones. There are many other clues to be found at Wanar that are suggestive of what these monuments originally looked like. For instance, the inner ring of the double circle features fallen monoliths that fan out from the center of the monument. This may suggest, coupled with findings of dry stone around the monument, that there used to be dry stone beneath the monoliths, and the cylinder made up of the inner ring and dry stone was once filled with earth, so that when it collapsed due to outward pressure, the stones all fell outward as well. This theory is not refuted by the fact that the stones of the outer ring fell in all different directions, lacking outward pressure. Pottery shards were also found scattered around the site, buried in different layers of earth. The layers in which the pottery was found indicates that some deposition occurred after the fall of the dry stone, but before the collapse of the monoliths. In other words, pottery may have been deposited at this monument after total and/or partial abandonment of the monoliths. Overall, the destruction of this double circle was a slow disintegration over time, as opposed to one large and sudden collapse. Sine Ngayène Sine Ngayène is the largest of the four areas and home of 52 stone circles, one double circle, and 1,102 carved stones. It is generally accepted that the single burials found here predate the multiple burials that are associated with the construction of the stone circles. In 2002, an expedition, called Sine Ngayène Archaeological Project, was launched in the Petit-Bao-Bolong drainage tributary. The team found iron smelting sites and quarries located close to the monument sites. Evidence suggests that the burials occurred first, with the stones being erected later, exclusively for the burials. Frontal stones were often erected on the east side of the stone circles. Cycle one Materials for the first cycle are located at approximately 1.6–2.0 meters below the surface and are dated between 700 and 800 AD. The main finding for this cycle was a large, oblong-shaped pit with a concentration of human remains in the form of a secondary burial. The remains were found with five iron spearheads and a copper bracelet. The pit was backfilled and capped with a mound overlaid with scattered laterite blocks. Researchers estimate that the outer circle of stones was built after the initial burial, and two large frontal stones were added. Cycle Two The layers analyzed for the second cycle are located at approximately 1.0–1.6 meters below the surface and date between 800 and 900 AD. For this layer, another oblong-shaped burial pit was discovered. This burial area consisted of more selective human bones, mostly long bones, and skulls, buried in discrete episodes. These were also linked to secondary burials. Overall, there were ten skulls, thirty long bones, and one iron spearhead found. Cycle Three Cycle three encompasses material between 0.5 and 1.0 meter below the surface and dates to between 900 and 1000 AD. This time period is when the inner circle of monoliths is speculated to have been built. Within this layer, a laterite slab was also discovered, which may have been used as a sacrificial table. It is during this time that the monument evolved from a selective burial ground to a broader ritual place, becoming more of a "public monument". There was a shift from burials to offerings during this cycle. Cycle Four This cycle contains material located from the surface to approximately 0.5 meters below the surface and is dated from anywhere between 1235 and 1427 AD. During this period, there seems to be less frequent use of the monument, and some things recovered from this layer may be accidental re-depositions. ==See also==