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Djenn Mosque Overview

Sep 22, 2025

Overview

The Great Mosque of Djenn in Mali is the largest mud-built structure in the world and a key example of Sudano-Sahelian architecture, central to the religious and cultural life of the region.

Historical Background

  • Djenn was founded between 800 and 1250 C.E. and became a center of commerce, learning, and Islam by the 13th century.
  • The original mosque was likely built in the 13th century by King Koi Konboro, Djenn’s first Muslim ruler.
  • The mosque has been reconstructed three times: original in the 13th century, second in 1834–36, and current in 1907.

Architecture and Design

  • The mosque uses local materials like adobe (mud brick), clay, sand, rice husks, and water.
  • Its plan is rectilinear, partly enclosed by an exterior wall, and supported by monumental pillars.
  • The facade features three minarets, engaged columns, and conical extensions topped with ostrich eggs symbolizing fertility and purity.
  • Timber beams protrude from the structure, serving both decorative and practical purposes as scaffolding for annual repairs.

Cultural Significance and Community Involvement

  • The mosque is the site of the annual CrĂ©pissage festival, where the community replasters the mosque using butter and fine clay.
  • Men mix the plaster, women bring water, musicians play, and elders and children also participate, reflecting community unity.
  • Attempts to alter festival traditions or rebuild the mosque with modern materials have been resisted by the community.

Conservation and Environmental Challenges

  • The mosque and region are threatened by environmental factors like flooding, urban development, and insufficient waste management.
  • UNESCO designated Djenn and its mosque as a World Heritage Site in 1988.
  • Restoration and conservation efforts are hampered by limited resources, especially after civil conflict in northern Mali.

Key Terms & Definitions

  • Sudano-Sahelian architecture — A style marked by adobe/mud-brick construction, prominent in West Africa.
  • Minaret — A tower part of a mosque from which the call to prayer is given.
  • CrĂ©pissage — The annual replastering festival for the mosque in Djenn.
  • Ostrich egg — Placed atop the mosque’s pillars symbolizing fertility and purity.

Action Items / Next Steps

  • Review images and maps of the mosque’s architecture.
  • Explore UNESCO's site and the recommended virtual tour for further understanding.
  • Research the annual CrĂ©pissage festival and its role in cultural preservation.