2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/114217We publicise a proof of the Jordan Curve Theorem which relates it to the Phragmen-Brouwer Property, and whose proof uses the van Kampen theorem for the fundamental groupoid on a set of base points.to be published in "Journal of Homotopy and Related Structures"Algebraic TopologyGroupoids, the Phragmen-Brouwer Property and the Jordan Curve Theoremtext