The Chiwulan and Longmen-jiushe sites are two recently excavated archaeological sites in northern Tai wan. Since archaeologically speaking these two sites represent a relatively recent time in history, they have been documented in the historical record of the period. This means the arc haeological remains found at these two sites represent an excellent source of data for analyzing Taiwan's early history. The Chiwulan and Longmen-jiushe sites have been documented in the historical literature as Chiwulan and Shandiao villages, respectively. The former was a Kavalan village and the latter a Ketaglan village. The archaeological record indicates that 400 years ago the Kavalan were a dominant people in the Lanyang Plain. Their dominance throughout the plains region led to Kavalan culture influencing aspects of village life in neighboring Shandiao. Hence the archeological record of Shandiao shows influenc e from the Kavalan culture whilst also displaying the unique character is tics of Ketaglan culture.