the naturalist ethic of Realism grew a major artistic movement, Impressionism. The Impressionists pioneered the use of light in painting as they attempted to capture light as seen from the human eye. Edgar Degas, Édouard Manet, Claude Monet, Camille Pissarro, and Pierre-Auguste Renoir, were all involved in the Impressionist movement. As a direct outgrowth of Impressionism came the development of Post-Impressionism. Paul Cézanne, Vincent van Gogh, Paul Gauguin, Georges Seurat are the best known Post-Impressionists. In Australia the Heidelberg School was expressing the light and colour of Australian landscape with a new insight and vigour. The Industrial Revolution which began in Britain in the 18th century brought increased leisure time, leading to more time for citizens to attend and follow spectator sports, greater participation in athletic activities, and increased accessibility. The bat and ball sport of cricket was first played in England during the 16th century and was exported around the globe via the British Empire. A number of popular modern sports were devised or codified in Britain during the 19th century and obtained global prominence – these include Ping Pong, modern tennis, Association football, netball and rugby. The United States also developed popular international sports during this period. English migrants took antecedents of baseball to America during the colonial period. American football resulted from several major divergences from rugby, most notably the rule changes instituted by Walter Camp. Basketball was invented in 1891 by James Naismith, a Canadian physical education instructor working in Springfield, Massachusetts in the United States. Baron Pierre de Coubertin, a Frenchman, instigated the modern revival of the Olympic Games, with the first modern Olympics being held in Athens in 1896. New imperialism: 1870–1914 The years between 1870 and 1914 saw the expansion of Western power. By 1914, the Western and some Asian and Eurasian empires like the Empire of Japan, Russian Empire, Ottoman Empire, and Qing China dominated the entire planet. The major Western players in this New Imperialism were Britain, Russia, France, Germany, Italy, and the United States. The Empire of Japan was the only non-Western power involved in this new era of imperialism. Although the West had had a presence in Africa for centuries, its colonies were limited mostly to Africa's coast. Europeans, including the Britons Mungo Park and David Livingstone, the German Johannes Rebmann, and the Frenchman René Caillié, explored the interior of the continent, allowing greater European expansion in the later