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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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Doctrine_of_signatures entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-05-13 and was most recently seen on 2026-05-13.
The doctrine of signatures, also known as the doctrine of correspondences, is a biomedicinal theory of pseudoscience. It states that herbs or animals have physical or behavioral traits that mirror the ailment it can successfully treat. Theological justifications, such as that of botanist William Cole, were that God would want to show men what plants would be useful for. The doctrine of signatures has a debated origin. Many historians believe it begins with primitive thinking methods, while other historians believe it originated with Dioscorides and was popularized in the 16th and 17th centuries after Jakob Böhme coined the doctrine of signatures in his book The Signature of All Things.
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Search interest data over the past 12 months indicates that this topic periodically attracts global attention. Sudden spikes often correlate with major news events, public statements, or geopolitical developments.