Core Viewpoint - The recent archaeological discoveries at the Yunnan Hebosuo site provide significant evidence for understanding how the southwestern frontier integrated into the unified structure of Chinese civilization during the Western Han Dynasty [3][5][10]. Archaeological Findings - The Hebosuo site has revealed a large settlement area that spans 12 square kilometers, with a core area of approximately 3 square kilometers, showcasing the ancient capital of the Kingdom of Dian and the administrative center of Yizhou [5][10]. - Significant artifacts include over 50,000 bamboo slips, with more than 14,000 inscribed slips, indicating a rich archive of Han Dynasty governance in the frontier region [13][15][16]. - The site features dense residential, sacrificial, and industrial zones, along with large architectural remains, roads, wells, and pits, confirming its status as the administrative center of Yizhou [10][23]. Historical Context - The discoveries at Hebosuo illustrate the coexistence of the ancient Dian Kingdom and the newly established Yizhou, reflecting a dual governance system where the central authority maintained control while respecting local traditions [10][21][26]. - The findings also highlight the long-term effective governance of the central Han Dynasty over the southwestern frontier, with evidence of administrative documents and a postal network facilitating communication [16][18][23]. Cultural Significance - The archaeological evidence underscores the historical interactions between the southwestern frontier and the central plains, contributing to the understanding of cultural exchange and integration during the Han Dynasty [25][26]. - The discoveries at Hebosuo enhance the narrative of how the southwestern region transitioned from a multi-ethnic area to a more unified state under the central authority, marking a significant milestone in Chinese history [25][26].