2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/67514We outline the proof of a theorem of M. Baker and A. Tamagawa that gives a complete description of the torsion points on a modular curve embedded in its Jacobian using the notion of an `almost rational torsion point.'Based upon lectures by K.A. Ribet at the University of Arizona in May 1999Number TheoryAlgebraic Geometry11G30text