Continental drift Continental drift Continental drift is the theory that the Earth's continents have moved over geologic time relative to each other, thus appearing to have "drifted" across the ocean bed. The speculation that continents might have 'drifted' was first put forward by Abraham Ortelius in 1596. The concept was independently and more fully developed by Alfred Wegener in 1912, but his theory was rejected by many for lack of any motive mechanism. Arthur Holmes later proposed mantle convection for that mechanism. The idea of continental drift has since been subsumed by the theory of plate tectonics, which explains that the continents
The Association for the Study of Play the University of Illinois at Urbana–Champaign (then the University of Illinois) and an affiliate professor in the Department of Anthropology. The scholars who met there formed the "Cultural Anthropology of Play Reprint Society." The next year, Michael Salter organized the first formal meeting of the new organization at the University of Western Ontario during the North American Society for Sport History (NASSH) convention. Participants renamed the organization "The Association for the Anthropological Study of Play" and elected B. Allan Tindall as president. In 1987, the organization changed its name to "The Association for the Study of Play" (TASP). The proceedings