Empirical Study I

Empirical Study I explores the long-run structural behavior of complex economic systems using the Abebe Law of Tensility framework. The study reconstructs structural tension across major historical civilizations between 3000 BCE and 1800 CE using normalized proxy indicators of systemic obligations and productive economic capacity. Because direct macroeconomic datasets are unavailable for most ancient and medieval societies, the analysis relies on qualitative historical evidence and proxy calibration to approximate the structural tension component of the Abebe Tensility equation: Φ_z = τ V_k (Early formulation used in this paper. In the standardized series notation, V_k is redefined as the unitary integrity scale, yielding the equivalent normalized form Φ_z = τ / V_k. Full mathematical equivalence is proven in Core Papers #2 and #3.) The objective is to investigate whether systemic disruptions across history tend to occur as structural tension approaches the theoretical stability thresholds proposed by the model. This study represents the first empirical calibration of the Abebe Tensility framework across a multi-millennial historical horizon. Series Position Core Paper #5 (Historical Empirical Calibration – Early Formulation) Companion Papers 1. The Abebe Unified Field of Integrity (vision) 2. The Abebe Parity Identity (mathematics) 3. The Abebe Parity Identity II (physical embedding) 4. The Abebe Tensility Framework – The Geometry of Failure 6. THE Abebe SENSOR PROTOCOL (2026–2027)