Wu Zetian was the only #woman in the history of #China to assume the title of Empress Regnant. As de facto ruler of China first through her husband and her sons from 665 to 690, not unprecedented in Chinese history, she then broke all precedents when she founded her own dynasty in 690, the Zhou (interrupting the Tang Dynasty), and ruled personally under the name Sacred and Divine Empress Regnant and variations thereof from 690 to 705.