Emperor Gaozu of Tang, born Li Yuan in 566, was the founder of the Tang Dynasty in China. He rose to power after leading a successful rebellion against the Sui Dynasty, which had become unpopular due to heavy taxation and military failures. In 618, he declared himself emperor, marking the beginning of a new era in Chinese history. Under his rule, Emperor Gaozu implemented various reforms that stabilized the economy and improved governance. He promoted Confucian ideals and reduced harsh laws, which helped to gain the support of the people. His reign laid the foundation for the prosperity and cultural achievements of the Tang Dynasty.