2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49363This paper reviews the history of the atmospheric neutrino anomaly. The historical record does not support more recent claims that the anomaly constitutes evidence for a neutrino mass. Most experiments have reported an apparent muon deficiency which is independent of energy and distance. Time dependent variations in the Super Kamioka results are noted.10 pages, 6 figures, from Proceedings of the 23rd Johns Hopkins Workshop "Neutrinos in the Next Millenium"High Energy Physics - PhenomenologyAtmospheric Neutrinos: Past, Present andtext