The discussion of modern Chinese nationalism has dominated many political and intellectual debates since the late nineteenth century. Political scientist Suisheng Zhao argues that nationalism in China is not monolithic but exists in various forms, including political, liberal, ethnical, and state nationalism. Over the first half of the twentieth century, Chinese nationalism has constituted a crucial part of many political ideologies, including the anti-Manchuism during the 1911 Revolution, the anti-imperialist sentiment of the May Fourth Movement in 1919, and the Maoist thoughts that guided the Communist Revolution in 1949. The origin of modern Chinese nationalism can be traced back to the intellectual debate on race and nation in late nineteenth century. Shaped by the global discourse of social Darwinism, reformers and intellectuals debated how to build a new Chinese national subject based on a proper racial order, particularly the Manchu-Han relations. After the collapse of the Qing regime and the founding of the Republic of China in 1911, concerns of both domestic and international threat made the role of racism decline, while anti-imperialism became the new dominant ideology of Chinese nationalism over the 1910s. While intellectuals and elites advocated their distinctive thoughts on Chinese nationalism, political scientist Chalmers Johnson has pointed out that most of these ideas had very little to do with China's majority population—the Chinese peasantry. He thus proposes to supplement the Chinese communist ideology in the discussion of Chinese nationalism, which he labels "peasant nationalism."