Core Points - The main event of the Cultural and Natural Heritage Day is being held in Changsha, which is described as a "museum without walls" [1][4] - Changsha is recognized as one of the first national historical and cultural cities in China, with a history dating back 150,000 to 200,000 years [4][5] - The city features numerous museums and cultural sites, showcasing a rich collection of historical artifacts and treasures [10][11] Summary by Categories Cultural Significance - Changsha is referred to as a "museum without walls," highlighting its extensive cultural heritage and historical significance [4][10] - The city has witnessed significant historical events from various dynasties, including the Qin, Han, Tang, and Song [4][5] Museums and Exhibitions - There are 32 state-owned museums and 20 private museums in Changsha, collectively housing numerous national treasures [10] - The article lists several must-see national treasures, including the "Su Sha Dan Yi" and the "T-shaped Silk Painting," which reflect ancient wisdom and cultural beliefs [11][13] Upcoming Exhibitions - Multiple special exhibitions are organized during the Cultural and Natural Heritage Day, including "Endless Yangtze River - The Yangtze and Chinese Civilization Exhibition" and "Searching for Ancient States in the Records of History" [39][41] - These exhibitions are free to the public and feature significant artifacts from various ancient cultures, enhancing the cultural experience for visitors [39][41][44]

Core Viewpoint - Recent discoveries at the Mawangdui Han Tomb have revealed that the previously identified "pillow cover" known as "Qidi 'Chengyun Embroidery'" is actually the earliest silk cushion found in archaeological history, along with significant findings regarding the T-shaped silk painting that shows signs of alterations [1][2]. Group 1: Discoveries at Mawangdui Han Tomb - The "Qidi 'Chengyun Embroidery'" cushion measures 100 cm in length and 74 cm in width, found in the tomb of Li Cang's wife, Xinzhui, and was previously misidentified as a pillow cover [1][2]. - The T-shaped silk painting, a centerpiece of the Hunan Museum's collection, is divided into three sections: heaven, earth, and underground, featuring a mythical creature and various deities [3]. Group 2: Research Methodology and Findings - Experts utilized multi-modal imaging techniques, including multi-spectral and X-ray fluorescence imaging, to identify multiple alteration traces on the T-shaped silk painting, indicating changes in artistic representation over time [3][4]. - The systematic inventory of over 21,000 artifacts from the Mawangdui Han Tomb was completed in 2022, revealing new insights, including auspicious phrases woven into textiles [4]. Group 3: Future Research Directions - The application of artificial intelligence tools and advanced imaging techniques is expected to enhance the study of Mawangdui silk texts and paintings, aiding in the restoration and preservation of these artifacts [5].

Core Insights - The recent discoveries at the Mawangdui Han Tomb reveal that the previously identified "pillow towel" known as "Qidi 'Chengyun Embroidery'" is actually a cushion, marking it as the earliest silk cushion found in archaeological records [1][3][4] - The T-shaped silk painting, a national treasure of the Hunan Museum, has been found to have multiple traces of alterations, indicating changes made during its creation [1][6][7] Group 1: Discoveries at Mawangdui Han Tomb - The "Qidi 'Chengyun Embroidery'" cushion measures 100 cm in length and 74 cm in width, discovered in the tomb of Li Cang's wife, Xinzhui [3] - The cushion was initially misidentified due to its similarity to another item, the "silk 'Chengyun Embroidery' pillow towel," which was found in the same burial chamber [4] - A review of historical records revealed that the term "茵" (cushion) was mistakenly recorded as "度" (degree), correcting the earlier misidentification [4] Group 2: T-shaped Silk Painting Findings - The T-shaped silk painting is divided into three sections: heaven, earth, and underground, featuring a mythical creature and various celestial elements [6] - Advanced imaging techniques uncovered multiple alteration traces, suggesting that the original design was modified, possibly due to changes in ritual practices over time [6][7] - The painting's depiction of a guardian figure holding a jade tablet indicates a ceremonial significance that may have evolved from the Spring and Autumn period to the Han dynasty [6] Group 3: Systematic Inventory and Research - In 2022, the Hunan Museum completed a systematic inventory of over 21,000 artifacts from the Mawangdui Han Tomb, including more than 19,000 textile items [9] - The use of artificial intelligence and advanced imaging techniques is being employed to enhance the study and preservation of Mawangdui artifacts, focusing on text and image restoration [9]

Core Insights - Hunan Museum is leveraging digital technology to enhance the accessibility and engagement of cultural heritage, creating a "digital twin" of artifacts through advanced scanning and modeling techniques [1][4] - The museum is set to launch an immersive digital exhibition titled "Life Art - The Mawangdui Han Culture Immersive Digital Exhibition" in June 2024, celebrating the 50th anniversary of the Mawangdui Han Tomb excavation [2] - The exhibition will utilize a combination of visual and auditory technologies to create an engaging experience that connects visitors with ancient cultural narratives [3] Group 1: Digital Transformation in Museums - Hunan Museum collaborates with Mango Digital Art Technology Co., Ltd. to establish a digital laboratory that employs multi-spectral scanning to create "digital gene maps" of artifacts [1] - As of January this year, 570 artifacts from the Mawangdui Han Tomb have been digitally scanned, with a goal to digitize approximately 27,000 artifacts within the next year [1] - The museum's digital initiatives aim to support the revitalization and utilization of cultural relics, allowing for interactive 3D models and AI-generated content [1] Group 2: Upcoming Exhibition and Cultural Engagement - The upcoming exhibition will transform the Mawangdui Han Tomb into a sophisticated "cosmic model," showcasing the intricate designs and patterns that reflect natural laws [2] - The exhibition will feature a panoramic acoustic system that integrates traditional music with natural sounds, enhancing the immersive experience for visitors [3] - Hunan Museum is expanding its reach by opening its brand and digital resources to universities and quality enterprises, fostering collaboration with over 30 art teams to create new cultural products [4] Group 3: Cultural Innovation and Public Participation - The museum is developing various cultural IPs, including holographic performances and interactive games, to engage a broader audience and promote cultural heritage [4] - The integration of academic rigor, technological innovation, and public participation is seen as a way to weave a rich cultural narrative that resonates with contemporary audiences [4] - The digital transformation is viewed as a means to grant artifacts a form of eternal existence, enhancing their significance in the modern world [4]

Core Viewpoint - The Hunan Museum has discovered multiple traces of repainting on the T-shaped silk painting, a national treasure, using advanced multi-modal imaging techniques [1][10]. Group 1: Discovery and Significance - The T-shaped silk painting was excavated from the Mawangdui No. 1 tomb, belonging to Xinzhui, the wife of the prime minister of the Changsha Kingdom, Li Cang [2]. - This painting is considered one of the museum's "treasures" due to its magnificent scenery and unique imagination [2]. Group 2: Details of the T-shaped Silk Painting - The painting is divided into three parts: heaven, earth, and underground, with the upper part featuring a human-bodied, snake-tailed deity, the candle dragon, and various celestial elements [4]. - Specific areas of repainting include the jade tablet held by the guardian deity and the positioning of figures in the human realm, indicating changes in ritual practices over time [6][8]. Group 3: Research and Future Directions - Experts are utilizing artificial intelligence and multi-modal imaging techniques to further study the Mawangdui silk texts and paintings, aiming to address challenges in text and image restoration [11]. - The museum plans to apply for a national-level project to integrate AI technology with the study of silk texts, seeking to overcome existing difficulties in the restoration process [11].