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
Canadian Society for the Study of Rhetoric Canadian Society for the Study of Rhetoric The Canadian Society for the Study of Rhetoric (CSSR) is a bilingual scholarly society based in Canada that is open to scholars involved in the teaching or researching of rhetoric. While the CSSR was founded as a Canadian version of the International Society for the History of Rhetoric, and while—as implied by its original name, the Canadian Seminar on the History of Rhetoric (CSHR)—it originally focused on the history of rhetoric, the CSSR now focuses on a range of rhetorical scholarship. Its membership typically includes scholars from North America and Europe (not just