The development of the republic (1912–20)
During the first half of the 20th century, the old order in China gradually disintegrated, and turbulent preparations were made for a new society. Foreign political philosophies undermined the traditional governmental system, nationalism became the strongest activating force, and civil wars and Japanese invasion tore the vast country and retarded its modernization. Although the revolution ushered in a republic, China had virtually no preparation for democracy. A three-way settlement ended the revolution: the Qing dynasty abdicated; Sun Yat-sen relinquished the provisional presidency in favour of Yuan Shikai (Yüan Shih-k’ai), regarded as the indispensable man to restore unity; and Yuan promised to establish a republican government. This placed at the head of state an autocrat by temperament and training, and the revolutionaries had only a minority position in the new national government.