The Jiaqing emperor: the day agreed in 1811 for storming the Forbidden City

The rebel chief Lin Qing lived at Songjiazhuang in Wanping county. He secretly practised the Eight Trigrams teaching, which was also called the White Yang teaching and was then renamed the Society of Heavenly Principle. He drew bandits into league and spread through Qi and Yu, and then, with Li Wencheng and Feng Keshan of Hua county, Xu Anguo of Dongming and others, swore an alliance and plotted rebellion. In the summer of the sixteenth year of Jiaqing they agreed on the fifteenth day of the ninth month of the eighteenth year, when I would be holding the great autumn hunt on my progress to Mulan, to gather their followers and storm straight into the Forbidden City, brazenly plotting treason.