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  2. List of German inventions and discoveries - Wikipedia

    en.wikipedia.org/wiki/List_of_German_inventions...

    1489: The + and - symbols first appeared in print in Johannes Widmann's book Behende und hüpsche Rechenung auff allen Kauffmanschafft, published in Leipzig in 1489, in reference to surpluses and deficits in business problems [298] 1490: Prosthaphaeresis, invented by Johannes Werner [299] 1525: The "√" symbol, first published by Christoph ...

  3. List of organisms named after famous people (born 1950 ...

    en.wikipedia.org/wiki/List_of_organisms_named...

    "The specific epithet, "jackiechani", is the Latinized genitive form of the name Jackie Chan, chinese actor and director of several films, in [sic] which the first author is a fan." [12] [13] Actaea grimaldii Ng & Bouchet, 2015: Crustacean: Albert II, Prince of Monaco: The prince was born Albert Grimaldi.