Archaeology
The impact of the Mongol conquests on earthen cities in Central Asia
The conquest campaigns of the Mongol Empire took place in the first half of the thirteenth century, deposing the Persianate Khwarazmian Empire and seizing its territories from Kazakhstan to the Persian Gulf and the Caucasus.
Historical accounts, such as those by Rashid al-Din (AD 1247–1318) and Ata Malik Juvaini (AD 1226–1283), describe scenes of mass destruction and violence, massacring and enslaving populations.
Based on these descriptions, the destruction has been long been suggested to be the cause of the depopulation of the region’s earthen-built cities. However, a new study by Dr Katie Campbell from King’s College at the University of Cambridge, now suggests that the depopulation rather than the destruction, is the primary reason for urban abandonment, as the remaining populations lacked the manpower and resources to maintain the earthen structures and supporting irrigation systems.
Archaeological evidence in Central Asia has found little supporting evidence of the direct destruction by the Mongols that supports the described historical narrative; however, convincing examples can be found elsewhere in parts of Russia and Eastern Europe.
Instead, previous excavations report a trend of architectural abandonment and desolation, contradicting the Mongol destruction accounts.
According to the study, abandonment events can be tracked from the 12th to the 14th century at the sites of Merv and Otrar following the Mongol conquest, with evidence of renovations, and occasionally, destruction. It is probable that the economic, political, and environmental stresses caused by the Mongol disruptions exacerbated pre-existing issues and hastened urban decline in cities which were already struggling.
According to Dr Campbell, “Both archaeological and ethnographic evidence demonstrate the importance of maintenance to earthen-built cities, and the potential for significant disruption to urban infrastructure, especially architecture and irrigation, which would occur from a decrease in population.”
“The specific properties of earthen architecture, especially the availability and affordability of mud as a building material, led to low-level reuse, and a widespread pattern of the eventual movement of cities after it was no longer possible to maintain them,” added Dr Campbell.
With the extensive economic and population disruptions caused by the conquests, the cities no longer had a sizeable population to undertake their basic maintenance, initiating the deterioration of the urban fabric that was difficult or impossible to reverse. This likely meant that earthen buildings, and sometimes entire cities, were abandoned and rebuilt across the region.
Dr Campbell said: “As the result of the archaeological findings and accompanying historical patterns, I argue that textual sources describing the destruction and desolation of cities by the Mongols should be considered within the context of patterns of construction and maintenance, which had persisted in these earthen cities for centuries.”
“Although it is likely that the Mongols caused some damage to the urban fabric, they did not literally destroy entire cities. Nonetheless, they did cause a crisis of urbanism in Central Asia, predominantly because they disrupted cycles of maintenance by sending the urban population into flight,” added Dr Campbell.
The result was a series of destroyed medieval cities that were likely destroyed by natural erosion rather than by the Mongol attacks.
https://doi.org/10.1386/ijia_00118_1
Header Image: Otrar – Image Credit : Mikhail Gurulev – CC BY 4.0
A recent study, published in the journal ResearchGate, proposes that the Pyramid of Djoser could have been constructed using hydraulic lift.
The Pyramid of Djoser, also known as the Step Pyramid, is a proto-pyramid built as the final resting place of Djoser, the first or second pharaoh of Egypt’s 3rd Dynasty (2670–2650 BC) during the Old Kingdom period.
The pyramid rises from the Saqqara plateau in six steps to a height of around 60 to 62 metres, serving as the centre of a vast mortuary complex.
Due to the absence of authentic sources from the pyramid architects’ working sphere, there is currently no confirmed comprehensive model for the method used in the pyramid construction.
The prevailing theory suggests that the heavy stone blocks were transported on apparatuses such as rollers, and raised to height using a series of ramps.
In the study, a survey of watersheds near to the pyramid indicate that the Gisr el-Mudir (enclosure) has features of a check dam for trapping sediment and water. Furthermore, the topography beyond the “dam” shows a possible ephemeral lake west of the Djoser complex, and water flow inside the moat surrounding it.
The study authors explain: “In the southern section of the moat, we show that the monumental linear rock-cut structure consisting of successive, deep compartments, combines the technical requirements of a water treatment facility: a settling basin, a retention basin, and a purification system.”
Based on this finding, the study proposes that the Gisr el-Mudir and moat’s inner south section worked as a unified hydraulic system for regulating flow and improving water quality. In addition, the pyramid’s internal architecture is consistent with a hydraulic elevation mechanism never reported before.
“The ancient architects likely raised the stones from the pyramid centre in a volcano fashion using the sediment-free water from the Dry Moat’s south section. Ancient Egyptians are famous for their pioneering and mastery of hydraulics through canals for irrigation purposes and barges to transport huge stones. This work opens a new line of research: the use of hydraulic force to erect the massive structures built by Pharaohs,” said the study authors.
Please note: This study was submitted to PLOS ONE on December 7, 2023. After two rounds of review by peers, the paper was formally accepted by PLOS ONE on June 27, 2024. Since July 23, 2024, it has been the subject of new consultations and review by the PLOS ONE Editorial Board.
Header Image Credit : Shutterstock
Sources : ResearchGate | Piton, Guillaume. (2024). On the possible use of hydraulic force to assist with building the Step Pyramid of Saqqara. PLOS ONE.
This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily
Constructed between 1630 and 1633 in a Renaissance-Baroque style, the Great Synagogue of Vilnius served as the religious centre of a complex of synagogues, mikvahs, and community institutions devoted to Torah study in Vilnius, Lithuania.
According to a press statement by the Israel Antiquities Authority (IAA): “The Great Synagogue of Vilna was the beating heart of the Lithuanian Jewry, which included 12 synagogues and study houses, the community council building, the home of Rabbi Eliyahu – the Vilna Gaon, Kosher meat stalls, the famous ‘Strashun’ library, a bathhouse and more.”
During World War II, the synagogue was looted, burned, and partially destroyed by the Nazis in the holocaust. Soviet authorities completely demolished the remaining structure to build a school, intending to prevent any future restoration of Jewish worship.
Only three original pieces of the synagogue survived the destruction: a door of the Holy Ark, a reader’s desk, and a bas-relief with the Ten Commandments, which are now on display at the Vilna Gaon Jewish Museum.
Image Credit : Israel Antiquities Authority
In a recent study conducted by the IAA, the Association of Lithuanian Archaeology, the Good Will Foundation, and the Jewish Community of Lithuania, archaeologists have rediscovered traces of the synagogue’s decorated walls and remnants of flooring with red, black, and white floral patterns that paved the main hall.
Excavations also uncovered huge water reservoirs to feed halachically pure water to the mikva’ot, and one of the giant pillars that surrounded the Bimah (prayer platform).
Dr. Jon Seligman from the IAA and Justinas Rakas from the Lithuanian Archaeological Society, said: “The magnificent remains we are rediscovering bring back moments in the life of a lost vibrant community.”
Header Image Credit : Israel Antiquities Authority
Sources : IAA
This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily
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