V6 Time Series Prefecture Polygons
收藏NIAID Data Ecosystem2026-03-10 收录
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资源简介：
Updated Prefecture Polygons now have mostly complete spatial coverage for the Dynastic administrative units from 1350 - 1911 CE. Prefectures from earlier periods, 221 BCE to 1350 CE, still have gaps in spatial coverage.
创建时间：
2017-01-12
