| http://www.w3.org/ns/prov#value | - Thousands of books and manuscripts uncovered in what is now Mali, especially around Timbuktu, are just being studied, with stunning results: African scholars in an unfathomably wealthy civilization independently developing sophisticated math, astronomy, and other sciences, even while Europe was still crawling out of the Middle Ages...From the world's oldest astronomical observatory to Timbuktu sch
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