The Great Mosque of Djenné in Mali is a gigantic mudbrick structure that exemplifies the country’s rich cultural and religious legacy. The mosque is located in the city of Djenné, Mali, on the flood plain of the Bani River. It is more than just a place of worship; it is a living, breathing representation of the community that created and maintains it.
The city of Djenné, where the mosque is located, was built around 250 BCE as Djenné-Jeno. Even before the Mali Empire rose to prominence, it was a vibrant metropolitan hub. The city was an important link in the trans-Saharan commerce networks, connecting traders from North and West Africa. Djenné is situated on a floodplain between the Niger and Bani rivers. Every year during the rainy season, areas of the city are encircled by water, making it appear almost like an island. This natural flooding has helped to support crops.

The Great Mosque of Djenné is an outstanding example of Sudano-Sahelian architecture, which is distinguished by the use of mudbrick (adobe) and characteristic vertical buttresses and towers. The mosque’s huge walls and towering minarets evoke majesty and permanence, while the earthen materials mix harmoniously with the surrounding terrain.
Aside from being a religious icon, the mosque was traditionally associated with a governmental and commercial complex. Djenné was a key trade hub along the trans-Saharan trade routes, connecting gold, salt, and ivory dealers from across Africa.
The mosque is entirely made of “banco,” a combination of mud, sand, and rice husks. This ancient building material is ideal for the region’s environment, as it provides thermal insulation. “Toron,” or palm wood beams, emerge from the mosque’s walls, acting as both decorative and structural supports. They also serve as scaffolding for the annual maintenance operation.
The mosque’s qibla wall, which faces Mecca, is a striking landmark, with three huge towers. The internal prayer hall, which is supported by numerous columns, provides a vast and tranquil ambiance. An outer courtyard offers more area for prayer and community gatherings. Ostrich eggs adorn the tops of the minarets. These are a classic representation of fertility and purity.

To prevent water damage, the mosque has ceramic pipes protruding from its walls. These pipes help to drain rainwater while still keeping the structure intact, which is a remarkable invention for a mud-based architecture.
Scholars continue to argue the precise date of the mosque’s original construction. However, it is usually assumed that the first mosque on the site was built between the 13th and 14th centuries, corresponding with Djenné’s growth as a major hub of trade and Islamic education.
According to historical records like the “Tarikh al-Sudan,” the original mosque was built after a local monarch converted to Islam. Djenné’s strategic location along trans-Saharan trade routes aided the spread of Islam, and the mosque served as a major focal point for the city’s burgeoning Muslim community.
The Great Mosque has been rebuilt multiple times over the ages, reflecting the city’s dynamic nature as well as the obstacles given by the region’s environment. The mosque that European explorer René Caillié visited in 1828 was in decay. This was due to the influence of Fulani leader Seku Amadu and his beliefs. Seku Amadu built a following mosque, which was ultimately replaced by the existing edifice. The current mosque dates from 1907 and has created the monument that we see today.
Scholars generally agree that Djenné’s traditional guild of masons was principally responsible for the reconstruction. In 1988, the “Old Towns of Djenné,” containing the Great Mosque, were named a UNESCO World Heritage site. This accreditation emphasizes the mosque’s cultural and historical significance, as well as the imperative of preserving its distinctive architectural history.

The Great Mosque requires annual upkeep to restore damage caused by rain and wind. This process, known as “Crépissage,” is an important community event. During the “Crépissage,” the entire town of Djenné helps to apply a fresh coat of mud plaster on the mosque’s exterior.
The “Crépissage” is more than just a utilitarian requirement; it is a powerful symbol of communal solidarity and shared cultural history. Young men and boys climb the “toron” to apply the plaster, while women and girls supply water and help with the procedure. This concerted endeavor strengthens social relationships and passes down traditional knowledge from generation to generation.
The Crépissage is a cultural event that is extremely important to the residents of Djenne. It is more than just a repair task; it is a cultural and community-building event.
The Great Mosque of Djenné faces numerous challenges. Its mudbrick construction exposes it to the elements, particularly rainfall and erosion. Climate change poses a rising concern, with more frequent and powerful downpour events capable of causing significant damage. The spread of urbanization and the use of modern building materials provide obstacles to the preservation of traditional architectural approaches.
Organizations such as UNESCO and the Aga Khan Trust for Culture have made significant contributions to the preservation of the Great Mosque. Efforts are undertaken to strike a balance between preservation and the ongoing requirements of the local community. There is a need to preserve ancient building techniques that have been employed for millennia.