Great Mosque of Djenné
A monumental adobe mosque in Djenné, Mali, renowned for its Sudano-Sahelian architecture and annual community replastering.
Banco: A traditional building material made from earth, water, and organic fibers, used in West African construction. Banco forms the mosque’s walls and surface plaster, which require regular renewal.
Crepissage: The annual communal replastering of the Great Mosque of Djenné with fresh mud plaster. This maintenance event renews the mosque’s vulnerable exterior and joins religious observance with civic labor.
Djenné: A historic city in the Inner Niger Delta of Mali, known for its earthen architecture and long-distance trade. The mosque stands at the center of the city whose religious and commercial life shaped it.
UNESCO World Heritage Site: A place inscribed on UNESCO’s World Heritage List for its recognized cultural or natural significance. The mosque is part of Djenné’s UNESCO-listed Old Town, bringing international heritage attention.
Adobe: A building material made from earth and fiber, formed into bricks and dried in the sun. The mosque belongs to a wider tradition of construction with sun-dried earth.
Mud plaster: A coating of earth and water applied to walls, often with fibers or other additives. Fresh plaster seals cracks and restores the mosque’s weathered surfaces.
Islam in Mali: The history and practice of Islam in the territory of modern Mali. The mosque serves a community shaped by centuries of Islamic practice in the region.
Cultural heritage conservation: The protection and management of places, objects, and practices valued as cultural inheritance. Conservation must account for a living earthen building that depends on periodic renewal.
Sudano-Sahelian architecture: An architectural tradition of the western Sahel, marked by earthen construction, projecting beams, and monumental forms. Its characteristic forms place the mosque within a regional architectural tradition.
Rain erosion: The wearing away of exposed surfaces by rainfall and runoff. Heavy rains erode the earthen walls, making recurring repairs essential.