Before revision: All variants of the movement, which lasted until 1965, are neopositivism,Any positivism placed in the 20th century is generally neo, although there was Ernst Mach's positivism nearing 1900, and a general positivistic approach to science—traceable to the inductivist trend from Bacon at 1620, the Newtonian research program at 1687, and Comptean positivism at 1830—that continues in a vague but usually disavowed sense within popular culture and some sciences.
After revision: All variants of the movement, which lasted until 1965, are neopositivism,Any positivism placed in the 20th century is generally neo, although there was Ernst Mach's positivism nearing 1900, and a general positivistic approach to science—traceable to the inductivist trend from Bacon at 1620, the Newtonian research program at 1687, and Comtean positivism at 1830—that continues in a vague but usually disavowed sense within popular culture and some sciences.