| http://www.w3.org/ns/prov#value | - Alongside the basic starch source, the early European beers might contain fruits, honey, numerous types of plants, spices and other substances such as narcotic herbs.[20] What they did not contain was hops, as that was a later addition, first mentioned in Europe around 822 by a Carolingian Abbot[21] and again in 1067 by Abbess Hildegard of Bingen.[22]
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