Sui Yangdi and the Building of Sui-Tang Luoyang

Sui-tang luoyang, built IN 605–6 as the eastern capital of the Sui dynasty and subsequently the eastern capital of the Tang dynasty, was one of the great cities of medieval China. Almost as soon as it was built to the taste of Emperor Sui Yangdi (r. 604–17), Luoyang became the second largest city in China, surpassed only by Daxingcheng-Chang'an, the first capital, which had been built by Yangdi's father. Both cities were objects of scholarly interest as early as the eighth century when, in 722, Wei Shu completed his Liangjing xinji [A new record of the two capitals] (Fukuyama Toshio).