the text, also known as Classic of Changes, excavated in 1977 from the Shuanggudui archeological site is called what?
Shuanggudui Shuanggudui () is an archeological site located near Fuyang in China's Anhui province. Shuanggudui grave no. 1, which belongs to Xiahou Zao (), the second marquis of Ruyin (), was sealed in 165 BCE in the early Han dynasty (206 BCE – 220 CE). Excavated in 1977, it was found to contain a large number of texts written on bamboo strips, including fragments of the "Classic of Poetry" and the "Songs of the South", a text on breathing exercises, a "year table" () recounting historical events, a manual on dogs, a version of the "I Ching" ("Yijing") that differs from the received one, and artifacts including the oldest known cosmic board, a divinatory instrument. Like Mawangdui and Guodian, two other tombs from the area of the old state of Chu, the Shuanggudui find has shed great light on the culture and practices of the early Han dynasty.
Chinese ritual bronzes Sets of ritual bronzes are the most impressive surviving objects from the Chinese Bronze Age. During the Shang dynasty, China became one of the most skilled bronze-working civilizations in the ancient world, as people heated, melted, and cast metal to making cooking utensils, tools, weapons, and other household items. Modern archaeologists see such preservation of how the ancient Chinese lived by interpreting from lacquer paintings on wood which helped preserve ancient Chinese bronze artifacts. Being from around 1650 BCE, these elaborately decorated vessels were deposited as grave goods in the tombs of royalty and the nobility, and were evidently produced in very large numbers, with documented excavations finding over 200 pieces in a single royal tomb. They were produced for an individual to use in ritual offerings of food and drink to his ancestors in family temples or ceremonial halls over tombs, or rather ritual banquets in which both living and dead members of a family participated; early literary records speak of these. On the death of the owner they would be placed in his tomb, so that he could continue to pay his respects in the afterlife; other examples were cast specifically as grave goods.