Darwinism became a movement covering a wide range of evolutionary ideas. In 1863 Lyell's "Geological Evidences of the Antiquity of Man" popularised prehistory, though his caution on evolution disappointed Darwin. Weeks later Huxley's "Evidence as to Man's Place in Nature" showed that anatomically, humans are apes, then "The Naturalist on the River Amazons" by Henry Walter Bates provided empirical evidence of natural selection. Lobbying brought Darwin Britain's highest scientific honour, the Royal Society's Copley Medal, awarded on 3 November 1864. That day, Huxley held the first meeting of what became the influential "X Club" devoted to "science, pure and free, untrammelled by religious dogmas". By the end of the decade most scientists agreed that evolution occurred, but only a minority supported Darwin's view that the chief mechanism was natural selection.