The 7th century can be said to be a time of maturity for Korean Buddhist sculptures because of the fine statuettes that have been discovered and preserved. As discussed above, standing bodhisattva images from the 6th century generally follow the Northern and Eastern Wei stylistic traditions such as the long crossed scarves and the swooping scalloped curves of the robes to the sides of images. During the second half of the 6th century, northern China was ruled by the Northern Qi and then the Northern Zhou until the Sui Dynasty successfully ended the Southern and Northern Dynasties period in 581. The styles of these three regimes can be seen in contemporaneous Korean sculpture and were influential in Korean sculpture of the 7th century as well.