Core Viewpoint - The previously misidentified "Qidi 'Chengyun Embroidery'" is actually a silk cushion, marking the earliest archaeological discovery of a silk cushion to date [1][4]. Group 1: Discovery Details - The "Qidi 'Chengyun Embroidery'" cushion measures 100 cm in length and 74 cm in width, excavated from the Mawangdui No. 1 tomb, which belonged to Xin Chui, the wife of Li Cang, the prime minister of the Changsha Kingdom [2]. - Alongside the cushion, a similar item identified as a silk "Chengyun Embroidery" pillow was also found, measuring 87.5 cm in length and 65 cm in width [2]. Group 2: Research Insights - The discovery was made by Yu Yanjiao, who noted that the misidentification stemmed from the lack of corresponding records for the "Qidi 'Chengyun Embroidery'" and the visual similarities between the two items [7]. - A review of historical records revealed a previously uncorrelated item named "White Silk 'Chengyun Embroidery' Cushion," leading to the conclusion that the "Qidi 'Chengyun Embroidery'" is indeed a cushion [7]. Group 3: Cultural Context - The artifacts found in Xin Chui's tomb, including various furniture and utensils, illustrate the customs of sitting on the ground while enjoying food and performances during the Han Dynasty [8]. - The arrangement of low furniture and seating reflects the cultural practices of the time, emphasizing the significance of ground-level living [8]. Group 4: Additional Findings - A new embroidery pattern, "Double Phoenix 'Chengyun Embroidery'," was also discovered, filling a gap in the research of this field [9]. - The Mawangdui tombs, excavated between 1972 and 1974, are recognized as one of the significant archaeological discoveries of the 20th century, yielding thousands of exquisite artifacts [9].