On the Great Mosque of Djenne

We recently saw this short video from a 2005 BBC program on Djenne, Mali. The video shows parts of the Great Mosque of Djenne that are not often shown, such as the system of ventilation on the roof of the structure. It is truly remarkable as an example of mud architecture.

Gambaru

Migeod 1924

One of the most illustrious sites associated with the Sayfawa dynasty of Borno is Gambaru. Located only a few kilometers from the royal capital, Birni Gazargamo, Gambaru was said to have been a favorite retreat of the Sayfawa rulers. The site is also remembered traditionally as the construction of a magira named Aisa Kili N'girmaramma. According to H.R. Palmer, this queen-mother ordered the construction of Gambaru for Idris Alooma (r. 1564-1596). Others, referring to Idris Alooma's mother as Amsa, attribute the site to Amsa. Despite the contradictory traditions on the mother of this famous mai, Gambaru was apparently in use until c. 1808 or 1809, when the attacking forces of the jihad pillaged Gazargamo and other sites in the region. In an attempt to reconstruct the history of Gambaru, we shall share our own thoughts on the site based on studies by historians, archaeologists, and travelers. Understanding Gambaru's origins and its function as a palace site will elucidate how the Sayfawa maiwa utilized brick for elite architecture. It may also reveal a Bornoan example of how a small royal center could coexist with a much larger birni 5 kilometers away that was the real economic and political core of the state. 

Migeod (1924)

Naturally, one must begin with the origins. Since Gambaru was referenced multiple times by Ahmad b. Furtu, including an allusion to a mosque there, the site was already established by the reign of Idris Alooma (Lange 131). Traditions collected by Landeroin extend the origins of Gambaru as a Sayfawa center further back in time, to the 15th century. Per tradition, the area of Gambaru was where a Sao hunter, Gouma Kandira (also called Dala Gomami) lived. When the Sayfawa arrived in the region, he granted them permission to settle nearby. Over time, the Sayfawa (or their followers from Kanem) used their abundant merchandise to acquire additional lands from the local Sao. Over time, Gouma Kandira was tricked into buying too many goods on credit that he could not repay. This led to Gouma leaving the region and the Sayfawa making Gambaru their capital. However, they found the region was too densely wooded, too close to the river (causing frequent flooding) and the site was not favorable for horses (Landeroin 356). Interesting, this Sao chief, Gouma Kandira, may be identified with the Sao hunter who settled in Machena, Bolo Kandira (also known as Guma Kerbina). Although C.J. Lethem recorded a version of events which attributed Gouma Kerbina's departure from Borno to his father, the traditions of Gouma Kandira/Bolo Kandira (or Dala Gomami) were known as far west as Machina. By their own traditions, the ruling dynasty of Machina were said to be descendants of this man. 

Graham Connah (1981)

A different version of this tradition was reported by Palmer. In Sudanese Memoirs, Palmer wrote of the "So" Dala N'Gumami, clearly the same Sao leader Dala Gomami. However, instead of Gambaru, Palmer wrote that Dala lived at the town of Gaji Dibun. The followers of the Sayfawa were already using land nearby for pastureland, amazing the gigantic Sao leader due to their small size and horses (Palmer 66). This Sao hunter subsequently led the Sayfawa to the area of Gazargamo. The familiar tale of the trick of the henna was then used to defeat the Sao and kill nearly all, except for Dala N'Gumami. This Sao leader was said to have been a friend of the Sayfawa (67-68). Despite the absence of Gambaru in Palmer's version of this event, it should be remembered that Gambaru was located quite near to the site of Gazargamo. The lack of the toponym in Palmer's version may have been due to different informants attributing the Sao hunter's town to the general vicinity of Gazargamo and Gambaru, along the Komadugu Yobe. Undoubtedly, further evidence is necessary, but a Sau-Gafata connection for these communities may be assumed since they were still living near Gazargamo in places like Damasak at the time of Idris Alooma's reign.

Thurstan Shaw (1978)

Since oral traditions associate Gambaru with the Sao leader who led or welcomed the Sayfawa to the area of Gazargamo, the area was inhabited by Sao peoples long before Gambaru became a royal retreat for the rulers of Borno. Traditions are still imprecise for the exact process in which Gambaru became Sayfawa royal center. For example, Lange heard traditions in the region that reported the site was constructed by Aisa for Ali Gaji or Dunama Dibalemi. Furthermore, one of these kings did not like Gambaru because it lacked adequate space for horse racing (Lange 133). This is clearly an instance of modern tradition recalling the names of two of the most prominent Sayfawa monarchs and anachronistically turning Aisa into the mother or magira of them. Migeod, writing in the 1920s, also recorded that the mai rejected Gambaru as a capital, thereby leading to it becoming the magira's town (226). Palmer, in Bornu Sahara and Sudan, wrote of Aisa Kili N'Girmaramma having great difficulty in protecting the life of Idris Alooma from his cousin, Dunama Fannami and Abdallah. As regent for her son, after Abdallah's death, she was said to have built the palace and mosque at Gambaru to so Idris would not be corrupted by the manners of Gazargamo (Palmer 232). 

Seidensticker's Plan

Muhammad Nur Alkali similarly attributed the construction of Gambaru to the queen Amsa, mother of Idris Alooma, based on a praise song for her (Alkali 145). Likewise, Bivar and Shinnie, in "Old Kanuri Capitals," also reported the tradition of Amsa (or Aisa) as the builder of Gambaru (Bivar & Shinnie 3). Even a problematic praise song in J.R. Patterson's Kanuri Songs, for a magira named Aisa, referred to her as owner of Gambaru. Overall, most traditions concur on the identity (Amsa or Aisa) of the magira who built Gazargamo, although some attribute the son for whom it was built to Ali Gaji. The sense of the mai rejecting Gambaru as a capital may be an interpolation of the other traditions in which the Sayfawa rejected Gambaru (or its environs) earlier in the 15th century. Lamentably, the method in which the magira sponsored the brick buildings or walls of Gambaru is ambiguous. Traditions of craftsmen imported from Tripoli to complete the project may be unreliable. After all, the Sayfawa had sponsored brick buildings since the 12th century in Kanem. It is possible that workers were local artisans using skills that the Sayfawa had long sponsored for elite structures. Possible evidence of this can be found in the existence of a mai jalabvube in Gazargamo, the head of brickmakers (Seidensticker 245). In terms of the construction of the brick walls, Migeod did note that the bricks showed evidence that not all the bricklayers were equally skilled (Migeod 227). Nonetheless, a magira like Aisa Kili N'girmaramma possessed ample resources and had the structures built. Gambaru is the only known site with fired-brick ruins believed to have been built by a woman.

Palmer (1936)

Due to the consensus on the builder of Gambaru, what can we infer on the site's history from the 16th century to the early 19th century? Lange noted the reference to horses in oral traditions on the site, which brought to mind J.R. Patterson's district report on Borsari from the colonial period. If the mulima, a slave official in charge of the royal horse stables, was based at Gambaru, oral tradition may be alluding to this official. According to Patterson, the mulima collected the taxes from the villages or towns of Sage, Gilbossu, and Jaba. The mulima was based at Gambaru in the past. If Nachtigal was correct to identify the post of mulima as one held by slaves, this official was also at Gambaru and received the right to collect taxes or tribute from villages in the area. Of course, in the days before the abandonment of Gazargamo, the metropolitan district was densely populated and full of villages and towns. This means that in the past, the mulima may have held tax rights over a large population. Provisioning members of the royal family staying at Gambaru may have also entailed some fiefs or administrative rights over villages in the region. Sadly, it is unclear if the fiefs held by the magira were also included among those tied to Gambaru.

Palmer, Sudanese Memoirs

Indeed, a possible hint of Gambaru's past connections to the larger region can be seen in Denham's brief description of the site. Denham, presumably drawing on oral tradition, was told the nearby river was once very actively used by boats moving from Gambaru to Kabshary. The surrounding area was also once extensively cultivated (Denham, Clapperton, Oudney 156). This account, though brief, was based on traditions only a little over a decade after the site was abandoned, so it has a degree of reliability. The active river traffic, well-cultivated surroundings, and proximity to Gazargamo meant an economically dynamic regional economy. In fact, farms along the Komadugu Yobe were sometimes irrigated, according to Patterson. This facilitated the growth of cotton and food crops. Lastly, given that horses were of major importance for the military capacity of the state, one can be also be sure that the Sayfawa rulers who occasionally stayed at Gambaru kept a close eye on the mulima. In truth, the name of Aisa Kili N'girmaramma may also be a reference to horses or horse racing (Lange 133). This is highly suggestive of a link between horses, the magira, and Gambaru. Being in an economically prosperous regional economy that was densely settled meant Gambaru could draw on these ample resources.

Sassoon's photo of Gambaru ruins 

Unfortunately, little remains of the site of Gambaru besides the brick walls. Luckily, Musa Hambolu, who partly excavated Gambaru in the 1990s, focused on a few areas that shed additional light. One of them, a Yobe-type archaeological mound was a 2x2 excavation north of the palace. Another spot excavated was 4x4 in the southeast quadrant of one of the round hut foundations within the palace (Hambolu 221). In terms of the actual palace, Hambolu described it as oblong-shaped and featuring 10 compartments or sections. Overall, it measured 24 meters long from the southwest to southeast, 12 meters from southeast to northeast, 27 meters from northeast to northwest and 10.5 meters from its northwest to southwest axis, a total of 243 square meters. In addition, 5 possible hut foundations were detected, 4 of which were located within one of the 10 compartments (Hambolu 223). While less impressive when compared to the palace complex at Gazargamo (100,000 square meters), Gambaru's buildings with circular brick foundations provide possible clues to the use of space between the walled areas, or compartments. Hambolu's excavation of a hut foundation in the southeast quadrant revealed a structure with a diameter 4.4 and 5 meters for its inner and outer dimensions. The wall was 60 centimeters thick but Hambolu did not excavate the entire structure (Hambolu 224). A possible purpose of the site where 4 of these structures were found could have been for the use of the harem or women of the mai. Perhaps one of the circular structures was similar to what can be seen at Machina today, apparently used for giving audiences in front of it. 

Another picture by Sassoon

Besides Hambolu, other descriptions of the site are based on the ruins of the walls still standing. The earliest, based on a description by a Borno native to a European who never saw Gambaru, dated to the 1810s. This brief account merely alluded to the remains of "castles" and houses erected by "Christians" in the past. The association of the site with Christians is certainly perplexing, but Gronenborn has suggested this may be due to a past presence of European slaves or captives in the region. In this light, it is intriguing to note that the original article, published in The Quarterly Review, referred to copper coins used by the Christians being dug up at Gambaro. The use of the word "Christian" in Borno to refer to "pagans" or kirdi should not be forgotten. The association with "Christians" may very well refer to a non-Muslim group in the area or perhaps forcibly resettled nearby. Alternatively, the presence of European slaves and renegades in precolonial Borno, allegedly highly esteemed by the Sayfawa, could also have been present at Gambaru in the 16th and 17th centuries. 

Sassoon picture of standing wall

After The Quarterly Review, travelers who visited the site described Gambaru. Denham was the next to write of his visit to Gambaru's ruins. Noting the mosque walls enclosing a space of 20 square yards, he also observed the house of the sultan with gates opening toward the river. The private mosque attached to the sultan's house was also still observable, as well as other buildings of brick. Barth, who came next several years later, was only able to distinguish 1 wall and a building he believed was part of a mosque (Lange 131). Unmentioned by Lange are the allusions to artificial basins or lakes near Gambaru. Denham, for instance, wrote that Gambaru was located northwest of Lake Muggaby (Denham, Clapperton, Oudney 155). Barth observed what he thought were artificial basins or lakes in the area near Gambaru, too (Barth 345). Consequently, the capital district may have used canals or irrigation ditches that fed artificial lakes or basins of water for agricultural or other purposes. Gambaru, located near a major river, may have benefited from this as water was rerouted to the agricultural settlements whose farmers paid taxes or tribute.

Photo of Gambaru in Bivar & Shinnie's "Old Kanuri Capitals"

Moving into the 20th century, more detailed descriptions of the site emerged. The valuable insights and observations by 20th century visitors and archaeologists are weakened by the plundering of the site for bricks. Nevertheless, some walls still stood to an impressive height in the 1920s. When Migeod visited, he described the palace as 250 yards by 150 yards, with walls of burnt brick. The brick walls were supposedly used to divide the space into multiple yards or sections used for walking, horses, or gardens (Migeod 226). The Gambaru walls impressively still stood up to 8 feet in some sections. However, he did not see evidence of a great palatial house structure, writing, "A great palace in the form of a house did not exist." But, he did view the foundation of a round structure or hut of a large diameter in the northwestern corner of the site (Migeod 227). Even by the 1960s, Bivar and Shinnie viewed walls that still stood up to 3 meters (Bivar & Shinnie 4). Some sections may have been partly restored during the colonial era, but probably not in any way that substantially altered the layout. Even by the 1980s, when Wilhelm Seidensticker produced the only plan of Gambaru, some of the brick walls survived. Seidensticker's plan and study indicates the site's palace was really 10 interior courtyard divided by brick walls. These walls, 1 meter wide with the width of 7-8 stretchers, were differently fired since they were much darker in color (Seidensticker 65). 

Another image of Gambaru's remaining walls in Bivar & Shinnie

As evidenced by the contradictory reports of Gambaru, much of the site's history and architecture remain enigmatic. Even the question of a palatial house or brick house is ambiguous. While Denham, who saw the site a little over a decade after its abandonment, believed there was a large sultan's house and private mosque, later visitors were less confident. Migeod, in the 20th century, believed the brick walls were mainly used to separate the 10 or so compartments or sections, which each had their particular uses or purposes. Gambaru's possible "Sao" origins and link to the Dala Gumami or Gouma Kandira of Borno oral tradition is additionally ambiguous. Thankfully, traditions concur on the magira who ordered the construction of Gambaru. Likely the mother of Idris Alooma, this makes Gambaru one of the few (if not the only) Sayfawa fired-brick site which can be linked to a woman ruler. The site's location and proximity to Birni Gazargamo, the Sayfawa capital established by Ali Gaji, made it a part of a populous and prosperous region that engaged in irrigated agriculture, trade on the Komadugu and overland, and possibly the use of canals or ditches to create artificial lakes or ponds. Gambaru's connection with the mulima and occasional use by the Sayfawa rulers likely made it a popular site for the mai to escape the crowds at Gazargamo. Access to the mulima may have also facilitated the organizing of the horses for military expeditions. In short, the site was well-positioned and functioned as another manifestation of Sayfawa elite architecture in the history of Kanem-Borno. As a smaller royal site near Gazargamo, one cannot help but wonder which, if any, fired-brick ruins in Kanem served a similar purpose. If the antiquity of the birni can be traced to medieval Kanem, then it is difficult to imagine that Tié was the royal capital of Njimi. Was it not, perhaps, akin to Gambaru as a royal center visited by the rulers but not the large town or city sometimes implied in medieval Arabic sources? 

Bibliography

Alkali, Mohammad Nur. 2013. Kanem-Borno under the Sayfawa: A Study of the Origin, Growth, and Collapse of a Dynasty (891-1846) . Nigeria: University of Maiduguri.

Barth, Heinrich. Travels and discoveries in North and Central Africa: Including accounts of Tripoli, the Sahara, the remarkable kingdom of Bornu, and the countries around Lake Chad. London: Ward, Lock, and Co., 1890.

Bivar, A. D. H., and P. L. Shinnie. “Old Kanuri Capitals.” The Journal of African History 3, no. 1 (1962): 1–10. http://www.jstor.org/stable/179796.

Connah, Graham. Three Thousand Years in Africa: Man and His Environment in the Lake Chad Region of Nigeria. New York: Cambridge University Press, 1981. 

Denham, Dixon, Hugh Clapperton, Walter Oudney, and Abraham V. Salamé. Narrative of Travels and Discoveries in Northern and Central Africa: In the Years 1822, 1823, and 1824. 2d ed. London: John Murray, 1826.

Gronenborg, Detlef. "Kanem-Borno: a Brief Summary of the History and Archaeology of an Empire in the Central Bilad-el-Sudan" in West Africa during the Atlantic Slave Trade, edited by Christopher R. Decorse. London: Bloomsbury Academic, 2018.

Hambolu, Musa. "Recent Excavations Along the Yobe Valley." Berichte des Sonderforschungsbereichs 268 (1996): 215-229. 

Lange, Dierk.  A Sudanic Chronicle: The Borno Expeditions of Idrīs Alauma (1564-1576) According to the Account of Aḥmad B. Furṭū : Arabic Text, English Translation, Commentary and Geographical Gazetteer. Stuttgart: F. Steiner, 1987.

Migeod, Frederick William Hugh. Through Nigeria to Lake Chad. London: Heath Cranton Limited, 1924.

Nachtigal, Gustav, Allan G. B. Fisher, and Humphrey J (trans.). Fisher. Sahara and Sudan, Vol. 2. Berkeley and ; Los Angeles: University of California Press, 1971.

Palmer, H.R. The Bornu Sahara and Sudan. London: J. Murray, 1936.

__________. Sudanese Memoirs: Being Mainly Translations of a Number of Arabic Manuscripts Relating to the Central and Western Sudan. 1st ed., new impression. London: Cass, 1967.

Patterson, J.R. Kanuri Praise Songs. Lagos: Government Printer, 1926.

Seidensticker, Wilhelm. "A Note on the Site of Gambaru, Borno State," Zaria Archaeology Papers 5 (1983): 65-67.

__________. "Borno and the East: Notes and Hypotheses on the Technology of Burnt Bricks" in  Lionel Bender and Thilo C. Schadeberg (editors), Nilo-Saharan Proceedings: Proceedings of the First Nilo-Saharan Linguistics Conference, Leiden, the Netherlands, September 8-10 1980.

Shaw, Thurstan. Nigeria: It's Archaeology and Early History. London: Thames and Hudson, 1978.

Tilho, Jean (editor). Documents Scientifiques De La Mission Tilho. Paris: Imprimerie Nationale, 1910.

The Brick Palace of Machina

One of the disappointing aspects of the study of Sayfawa royal architecture is the absence of adequate photographs, plans, and sketches of the old palace complex at Machina, Nigeria. Long known to be the only fired-brick construction sponsored by the Sayfawa that is still in use (the others have been plundered for building material or ravaged by time and sackings), Machina's palace structure has undoubtedly been modernized or restored in the 20th century (and likely the 21st, too). But finding photographs of what the palace complex looked like has led us to Google and social media accounts by Nigerians from Yobe State or Machina itself. These images, however, do not provide a complete overview of the palace complex. Nor does Google Earth clearly display an outline of the palace complex. 

In spite of these aforementioned limitations, the photographs online do offer some clues as to how the brick structure might have looked in the past. In addition, it was also similar to other sites in Borno and possibly the larger "Central Sudan" region. For instance, the circular structure in which the Machinama (king of Machina) is seated while talking to guests may be how circular, brick structures were used in Birni Gazargamo, Gambaru, and other sites. These brick buildings with a courtyard for hosting visitors or relatives were part of a larger palatial complex of buildings with brick walls. Besides this feature, the old brick walls for a structure that appears to have been retained in front of newer concrete walls may have been the reception space for larger audiences. Alternatively, it may have once been part of the walls of the original house for the king, possibly lost when the ruling family favored concrete and other materials to modernize the palace.

In terms of historical sources and studies, Machina's palace was noted by colonial-era officials, travelers, and subsequent, post-colonial scholars. C.J. Lethem, whose 1919 report on the Marchena District report has been digitized, was told the palace was unique for having a main gate facing the east rather than the west. Supposedly, this was done so the palace's gate could face toward Birni Gazargamo. Moreover, Lethem believed the bricks at Machina's palace were smaller than those of Gazargamo and Gambaru. Yet despite its smaller size, the structure in the early 20th century had one hall, which was 20 feet high, plus 54 layers of brick in its walls. The structure was in need of repair, however, especially the roof and arches. Unfortunately, Lethem did not include a sketch or plan for the palace. To his credit, however, he recorded an early version of Machina history based on a chronicle lost when Zinder attacked the town in c. 1896 (or was it just a girgam?). This chronicle, rewritten based on memory, extended the history of the town 988 years. It similarly made the original rulers of the town Sao (So). 

But the chronicle sought to connect Machina with the origin of Sayfawa consolidation at Gazargamo in the 15th century. According to this tradition, the first mai to settle at Gazargamo sent troops to the west to capture a woman who could bear a son for him (no previous wife had sons). The woman the Bornoan forces seized was actually a Machina woman who was the wife of the Machina Sao hunter, Bolo. Unbeknownst to the ruler of Borno, this Machina woman was already pregnant with a son, born in Borno. She later bears the Sayfawa king another child, named Arigu like her previous son. Then, in a case of mistaken identity, her first son succeeded to the throne. After calamity, people in Borno realize her second son was the legitimate heir. With his half-brother on the throne, the son of the Machina chief returns to Machina. But missed by his dear half-brother in Gazargamo, he is visited by the Sayfawa mai. In order to make sure his brother lives in an appropriately royal setting, the Sayfawa mai "sent for a supply of the famous Birni bricks, or, according to another account, hade them made at Mijirik, near Gumsi "(Lethem 4). If taken at face value, this account would make Ali Gaji the step-father of Arigu, the first Machina leader to live in a brick palace. Since there are no sources to corroborate what is clearly a legend of origin, and we have no records of a Sayfawa mai named Arigu who ruled after Ali Gaji, this account is nonetheless interesting for not claiming direct descent from a Sayfawa mai. Even if its attempts to connect the Machina dynastic line to an earlier period in Borno history, the fact that they don't assert a Sayfawa origin may represent some historical truth. Indeed, according to Lethem, the chiefs of Machina were Walu, a group possibly tied to the Dagira peoples.

The next person to describe the palace of Machina was Migeod, whose Through Nigeria to Lake Chad was published in 1924. Migeod saw the palace, describing it as a brick house with a brick wall around it. He also thought the bricks were carried from Gazargamo a little over 100 years ago, when the Sayfawa capital was abandoned. Moreover, the Machina palace was in poor condition by the time Migeod saw it. Consequently, the Machinama was in the process of rebuilding it. Nonetheless, Migeod still observed large pillars and arches and a square-shaped reception hall with 4 arches (Migeod 278). Is it possible this is the most imposing of the brick structures seen today? It is quite clear that Migeod was wrong to suggest the brick palace was only built in the 1800s and with plundered bricks from Gazargamo. This is contradicted by Lethem's sources and may have been a reflection of the limited knowledge of fired-brick structures west of Lake Chad at the time. Interesting, Migeod's book included 2 photos of walls from the Gambaru palace structure, whose bricks do bear a resemblance to those of Machina. 

With the exception of John Lavers, whose research on Machina's palace is difficult to find, Wilhelm Seidensticker seems to the most recent scholar to investigate the site. In a short essay on brick technology in Borno ("Borno and the East: Notes and Hypotheses on the Technology of Burnt Bricks"), he referred to Machina's palace as a complex with several impressive brick buildings. Furthermore, Machina tradition attributes the bricks to Gazargamo. The people there even described the bricks differently, based on color. In another essay, entitled "Archaeometric investigations on burnt bricks from six archaeological sites in Nigeria and Niger," Seidensticker et al. wrote of preliminary chemical analysis of bricks from different parts of Borno. The Machina bricks, though said to have come from Gazargamo by oral tradition, were actually unlike the samples from every other site (Lergam, Gazargamo, Gambaru, Kukawa graves of al-Kanemi shehus, Garumele, Garukime). Although further analysis is necessary, the chemical analysis of the bricks from these sites may suggest that masons and bricklayers sponsored by the Sayfawa were sent to various locations. These artisans may have used local materials for their bricks. In fact, this theory is the most sensible since it is difficult to imagine large quantities of bricks being moved from across vast distances if local materials could be sourced and prepared to complete elite structures at Machina, Gambaru, Garumele, Lergam, Garukime, and other sites. Of course, actually dating the bricks and a more thorough chemical analysis are required to understand the chronology and when Machina's palace came into being. 

Ultimately, we can only hope for complete photographs of the site, dating of the bricks, and further study and comparison with Borno and Kanem fired-brick sites. The traditions of Machina suggest that the palace was built by a Sayfawa mai for a half-brother who ruled at Machina. This tradition may not stand up to scrutiny, but is interesting nonetheless for providing an example of Sayfawa elite agriculture "extended" to Machina. This brings to mind the Sayfawa sponsorship of a brick mosque for the Kalumbardo community, although possible Sayfawa descent for the second movement's founder has been suggested by Bobboyi. Further, the Machina palace structure, despite modernization, has elements comparable to other fired-brick structures in the Central Sudan. Further study of the largest brick building and the use of arches or pillars may help us understand how Gazargamo, Gambaru or Njimi structures looked. Since the bricks used at Gazargamo and Gambaru were larger, we should probably expect Machina's palace to have been much smaller than what the Sayfawa rulers used for their own elite residences.