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ckan_admin 建立了数据集Persian Empire 331 BCE - 1800 CE 10年前

Persian Empire 331 BCE - 1800 CE

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ECAI Clearinghouse

In the 1990's ECAI developed the ECAI Metadata Clearinghouse, a system for managing and cataloging spatio-temporal cultural data. ECAI's Metadata Clearinghouse includes records... 读取更多

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