Sui and Tang bronze mirrors

Timeline

1. 501–550Jiankang (capital of the Liang and Chen) · JiangsuDuring the Liang and Chen of the Southern Dynasties, bronze mirrors still followed Han-Wei traditions, with backs commonly bearing divine beasts, the Four Symbols, and inscription bands; meanwhile Western Regions grape and honeysuckle motifs entered via the Silk Road and blended with native auspicious-beast designs, preparing the way for the later popularity of Sui-Tang sea-beast-and-grape mirrors.
2. 550–589Chang'an · ShaanxiAfter the Northern Zhou gained control of Guanzhong, it consolidated northern mirror-casting workshops; after Emperor Wen of Sui unified north and south (589), Chang'an and Luoyang became major centers of official and private mirror casting, with heavier mirror bodies, larger knob bases, adjusted tin-lead ratios in the alloy making mirror faces brighter, and inscriptions becoming more regular.
3. 581–600Yangzhou · JiangsuIn the Sui, mirror casting flourished in Yangzhou, Luoyang, and elsewhere, with auspicious beasts and grapes, baoxiang flowers, and water-caltrap blossoms becoming mainstream motifs; bronze mirrors circulated as tribute and gifts between the court and aristocratic families, and archaeological finds show this period's mirror backs becoming more symmetrical and dense, laying the formal foundation for the full flourishing of Tang bronze mirrors.