How were yangdi and taizong different as rulers

Sui Yangdi was the second emperor of the Sui Dynasty, and reigned from 604-618 CE. His major accomplishment as emperor was completing the Grand Canal. "Sui Yangdi's investment in the Grand Canal paid dividends for more than a thousand years. It integrated the economies of northern and southern China (Traditions and Encounters, 377). Because Sui Yangdi's construction projects demanded high taxes and forced labor on the Sui people, they were discontent with his rule. When Korean troops started to push back the Sui army, the discontent people revolted angainst Sui Yangdi. In 618 a "disgruntled" official assassinated the emperor and the Sui dynasty fell. Sui Yangdi was important because he was the last emperor of the Sui dynasty and completed construction on the Grand Canal.

Tang Taizong was the second emperor of the Tang dynasty and reigned from 627-649 CE. After Taizong's "shady" ascension to the throne at Chang'an, he worked to create a stable government. Taizong was a Confucian ruler who led the Tang dynasty into a period of prosperity. While on the throne, Taizong ended banditry and kept the price of rice and taxes low. Taizong also maintained an extensive communications network based on roads and runners. Moreover, Taizong supported the equal field system and a bureaucracy of merit, electing officials based on how they scored in the examination system. Under Tang Taizong, the Tang dynasty also expanded militarily (Traditions and Encounters, 378-9). Tang Taizong was important because under his rule the Tang dynasty entered a period of stability and prosperity.