In the xinchou year the Qing dynasty was forced to sign the Xinchou Treaty, the Boxer Protocol.
Tips
culture
辛 is the eighth Heavenly Stem and 丑 the second Earthly Branch, the Ox, so every 辛丑 year is a Year of the Ox: 1901, 1961, 2021 and next 2081.
usage
Wars, treaties and reforms are often named after the cyclical year they fell in: 甲午 1894 for the war with Japan, 戊戌 1898 for the reform, 辛丑 1901 for the Boxer Protocol and 辛亥 1911 for the revolution.