洋务运动
In 1870, a number of foreigners were killed during riots in Tianjin. This incident soured China's relatively stable relations with the Western powers and marked the end of the first period of the Self-Strengthening Movement. By the second period, Li Hongzhang had emerged as the most important leader of the reform movement. He played a pivotal role in starting and supporting many of the initiatives during this period. Over 90 percent of the modernization projects were launched under his aegis.