by Sven Mildner, May 5, 2026
DOI: https://doi.org/10.31223/X5313T

In this draft of a new interpretation of Germania Magna, the author presents his hypothesis that Germania Magna underwent a far more extensive landscape transformation in geologically recent times than previously assumed. This was presumably caused by post-glacial isostatic rebound during the Holocene, or by a possible reactivation of the Caledonian Deformation Front (CDF) during a late phase of the Alpine orogeny, along with the associated tectonic activity in the upper crust (see following section). There is also the consideration whether a cosmic impact event could have been the cause of such a reactivation of the CDF. The conditions that would be expected in order to sufficiently substantiate the process described below would probably also involve previously misattributed or incorrectly dated major fault events. These could have repeatedly triggered stronger earthquakes in Central Europe over several centuries and may even have been recorded in written sources from the later Middle Ages.[1]

This four-part publication series presents Mildner’s Geodynamic Reinterpretation Model at increasing levels of mathematical and geophysical depth. Part 1 (this document) provides the general conceptual and interdisciplinary framework. Parts 2–4 are companion documents and develop the cartometric, geophysical, and impact-mechanical foundations in quantitative detail.

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**General Model Description based on the primary source:** Mildner, S. (2025/2026). *A new interpretation of Ptolemy's Germania Magna: Employing computer-assisted image distortion of a medieval map by Donnus Nicolaus Germanus to examine post-glacial geodynamics in Europe.* EarthArXiv (Preprint). https://doi.org/10.31223/X5313T
([📥 **Download v7.3-PDF**](https://zenodo.org/records/20474381/files/Geodynamic_Model_Description_for_Ptolemys_Germania_Magna___eartharxiv__7.3.pdf?download=1))

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Sven Mildner contends that the dramatic geodynamic and climatic rupture of 536 AD likely involved a reactivation of the ancient Caledonian Deformation Front (CDF) and the Trans-European Suture Zone (TESZ). He argues that large-scale inversion tectonics, fueled by Alpine compressive forces, reshaped Germania Magna during this period. With the Lausitz Block anchoring these stresses, neighboring massifs like the Harz and Thuringian Forest underwent significant rotation and deformation. The consequences were environmental and societal collapse: catastrophic floods, firestorms, and the formation of the 'Event-Dark-Earth' (ED-E) layer, alongside a major regression of the North Sea. This transformation explains why the ancient, compact shape of Germania Magna vanished, leading to the abrupt end of its settlement history.

The study of Claudius Ptolemy’s Geographike Hyphegesis, written around 150 AD, represents one of the most complex tasks in historical geography. With over 6,300 recorded places and their coordinates, the work forms the fundamental framework for our understanding of the ancient world.¹ The scholarly challenge arises from the discrepancy between the ancient data and modern topography, which has historically often been attributed to faulty transmission or insufficient measurement accuracy. The plausibility analysis presented here addresses a radical paradigm shift: the identification of the ancient Vistula not with the Weichsel (Vistula) in Poland, but with the system of the Black Elster in present-day Lusatia, as postulated by Sven Mildner in his publication on Germania Magna.²

This approach is based on the realization that Ptolemy calculated with an Earth circumference of 180,000 stadia, which led to a systematic distortion of the coordinates.¹ Modern research, particularly projects at the Technical University of Berlin by Kleineberg, Marx, and Lelgemann, has shown that more precise localization of ancient settlements is possible through mathematical rectification and statistical analyses.⁴ Sven Mildner’s reinterpretation expands this geodetic framework by incorporating interdisciplinary parameters from geodynamics and archaeometallurgy to create a coherent landscape reconstruction of Germania Magna.³