step by step geographically. Work on gymnastics In 1861 Ravenstein established the German Gymnastics Society, a sporting association, in London. It promoted gymnastics and held annual athletic competitions, at a purpose-built German Gymnasium in St Pancras, and at The Crystal Palace. By 1866, the society had 1,100 members, drawn from more than 30 nationalities, with 650 members being Britons, mostly tradesmen. With William Penny Brookes and John Hulley, he was a founder member of the National Olympian Association in 1865, which promoted an annual series of sporting events across the country, inspired by the Olympic Games of Much Wenlock. He published a handbook on gymnastics in 1867. Notes References External links "Ernest George Ravenstein: The Laws of Migration, 1885" by John Corbett, Center for Spatially Integrated Social Science Ernst G. Ravenstein (1909) Martin Behaim: his life and his globe - Linda Hall Library German autobiographers English autobiographers Scientists from Frankfurt English geographers German emigrants to the United Kingdom 1834 births 1913 deaths German male non-fiction writers Population geography Victoria Medal recipients Fellows of the Royal Scottish Geographical Society Academics of Bedford College, London