2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/105777This is the Preface to the special issue of 'International Journal of Geometric Methods in Modern Physics', v.3, N.1 (2006) dedicated to the 50th aniversary of gauge gravitation theory. It addresses the geometry underlying gauge gravitation theories, their higher-dimensional, supergauge and non-commutatuve extensions.20 pages, Preface to the special issue of Int.J.Geom.Methods Mod.Phys, dedicated to the 50th aniversary of gauge gravitation theoryGeneral Relativity and Quantum CosmologyHigh Energy Physics - TheoryMathematical Physicstext