For centuries, the Cerne Abbas Giant, a 55-meter figure carved into a hillside in England, has been an archaeological enigma. Traditionally attributed a prehistoric origin, recent digital studies have changed this perspective. Thanks to advanced scanning and modeling techniques, researchers have been able to date its creation to the Saxon era, dismantling myths and opening new questions about its purpose.
Aerial Photogrammetry and LiDAR: The digital dating of the colossus 🗺️
The National Trust team used drones equipped with high-resolution cameras to perform aerial photogrammetry of the site. This process generated a millimeter-precision 3D model which, combined with LiDAR (Light Detection and Ranging) data, allowed analysis of soil erosion and sediment layers. Digital simulations revealed that the figure was not created in the Iron Age, as previously believed, but between the 7th and 9th centuries AD. The digital modeling also facilitated a visual comparison between the giant's current state and historical reconstructions, showing how the original profile has been modified by erosion and past restorations.
Simulating the lost landscape: God or warning? 🤔
Hypotheses about the giant's purpose have been debated for decades. Virtual reconstructions of the original landscape, created using simulation software, suggest the figure may have been visible from an ancient Saxon settlement, functioning as a territorial marker or a fertility deity. However, other simulations indicate that its prominent phallus and threatening posture could have served as a warning against invasions. Although 3D technology has clarified its chronology, the mystery of its function remains alive, demonstrating that even the most modern tools do not always unveil all the secrets of the past.
What specific revelations about the dating and original purpose of the Cerne Abbas Giant have been discovered thanks to the 3D scanning and modeling of the surrounding terrain?
(PS: If you dig at a site and find a USB stick, don't plug it in: it could be malware from the Romans.)