The Amsa-dong Prehistoric Site is an archaeological site located in the eastern part of Seoul, South Korea. It dates back to the Neolithic period, around 4000 to 3000 BCE, and is known for its well-preserved remains of ancient dwellings and artifacts. Excavations have revealed tools, pottery, and evidence of early agricultural practices, providing insights into the lives of prehistoric communities. This site is significant for understanding the transition from a nomadic lifestyle to settled farming. The findings at Amsa-dong contribute to the broader study of Korean prehistory and highlight the cultural developments that occurred during this era.