2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36184In the first part I set out some unexplored historical material about the early development of cosmic topology. In the second part I briefly comment new developments in the field since the Lachieze-Rey & Luminet report (1995), both from a theoretical and an observational point of view.LateX 9 pages, to appear in Acta Cosmologica, Proceedings of "Concepts de l'Espace en Physique", Les Houches, 29 sep - 3 oct 1997General Relativity and Quantum CosmologyAstrophysicsHistory and Philosophy of Physicstext