Core Insights - The Chinese Academy of Social Sciences has released significant findings in technological archaeology and cultural heritage protection, focusing on the continuous use of indigenous grape species from 10,000 years ago to the Song and Jin dynasties, with the Erlitou site in Henan as a key example [1][5]. Group 1: Archaeological Findings - Archaeological evidence from four sites, including the Erlitou site, indicates that indigenous grape seeds were utilized by early Bronze Age populations, dating back approximately 1,000 to 6,000 years [2]. - The morphology of ancient grape seeds suggests they resemble wild grape species, with no significant changes indicating domestication, raising questions about ancient cultivation practices [4]. - The discovery of carbonized grape plants near the Erlitou site suggests that ancient populations may have begun cultivating indigenous grape species during the Erlitou culture period [4]. Group 2: Historical Context - Historical records indicate that prior to the introduction of Eurasian grape varieties during the Han dynasty, indigenous grape resources were already being utilized by ancient populations [5]. - The coexistence of indigenous and Eurasian grape varieties suggests a long-term shared usage rather than a complete replacement of local resources [5]. Group 3: Erlitou Site Significance - The Erlitou site, believed to be a late capital of the Xia dynasty, has been under archaeological investigation since 1959, revealing a vast area of approximately 3 million square meters and significant bronze artifacts [9]. - Recent technological analyses of over 60 years of findings from the Erlitou site have identified eight types of bronze materials, indicating a transition from early to more refined bronze production [10]. - The sourcing of copper materials from the Zhongtiao Mountains in southern Shanxi confirms the Erlitou state's capability to manage long-distance resource acquisition, highlighting the complexity of early state governance [12].