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Hundreds of ancient mass graves found in Sahara

Lyon, Mar 12: Researchers using satellite remote sensing have uncovered a major archaeological discovery in the Eastern Sahara, revealing around 260 previously unknown ancient burial enclosures spread across nearly 1,000 kilometres of desert in Sudan’s Atbai region. The study, conducted by archaeologists from Macquarie University, France’s HiSoMA research unit, and the Polish Academy of Sciences, used satellite imagery to map the desert without excavation.
The structures, dated to roughly 4000–3000 BCE, are large circular enclosures—some up to 80 metres wide—containing human and animal burials, often arranged with a central individual surrounded by others. Scientists believe these may reflect early forms of social hierarchy, with the central burials possibly belonging to community leaders or elites.
The findings suggest that the builders were nomadic herders who lived during the late African Humid Period, when the Sahara was transitioning from a greener landscape to a desert. These communities relied heavily on cattle, sheep, and goats, with cattle appearing to hold special cultural and symbolic importance. In some cases, animals were buried alongside humans, indicating their high status within society.
Researchers argue that these burial enclosures point to a widespread nomadic culture that once stretched across parts of the Sahara, rather than isolated groups. The monuments also show that these societies were well-organised and capable of creating long-lasting sacred landscapes that were reused for thousands of years by later populations.
As the climate became increasingly dry and the Sahara turned into desert, these pastoral communities likely migrated toward the Nile or other more habitable regions, or adapted by increasing mobility and changing herding practices. The decline in rainfall during the end of the African Humid Period likely played a key role in their dispersal.
The discovery reshapes understanding of prehistoric North Africa, highlighting complex social structures among nomadic groups long before the rise of ancient Egyptian and Nubian civilisations. It also suggests that developments in herding, social hierarchy, and burial traditions may have contributed to later monumental cultures in the region.
However, researchers warn that many of these fragile archaeological sites are now threatened by modern unregulated mining activities, risking the permanent loss of evidence from a crucial chapter of human prehistory. (The Conversation)