Essex was commemorated with a poem of the same name. Post-medieval perceptions Early modern publications, dealing with what is now called Viking culture, appeared in the 16th century, e.g. Historia de gentibus septentrionalibus (History of the northern people) of Olaus Magnus (1555), and the first edition of the 13th-century Gesta Danorum (Deeds of the Danes), by Saxo Grammaticus, in 1514. The pace of publication increased during the 17th century with Latin translations of the Edda (notably Peder Resen's Edda Islandorum of 1665). In Scandinavia, the 17th-century Danish scholars Thomas Bartholin and Ole Worm and the Swede Olaus Rudbeck used runic inscriptions and Icelandic sagas as historical sources. An important early British contributor to the study of the Vikings was George Hickes, who published his Linguarum vett. septentrionalium thesaurus (Dictionary of the Old Northern Languages) in 1703–05. During the 18th century, British interest and enthusiasm for Iceland and early Scandinavian culture grew dramatically, expressed in English translations of Old Norse texts and in original poems that extolled the supposed Viking virtues. The word "viking" was first popularised at the beginning of the 19th century by Erik Gustaf Geijer in his poem, The Viking. Geijer's poem did much to propagate the new romanticised ideal of the Viking, which had little basis in historical fact. The renewed interest of Romanticism in the Old North had contemporary political implications. The Geatish Society, of which Geijer was a member, popularised this myth to a great extent. Another Swedish author who had great influence on the perception of the Vikings was Esaias Tegnér, a member of the Geatish Society, who wrote a modern version of Friðþjófs saga hins frœkna, which became widely popular in the Nordic countries, the United Kingdom, and Germany. Fascination with the Vikings reached a peak during the so-called Viking revival in the late 18th and 19th centuries as a form of Romantic nationalism. In Britain this was called Septentrionalism, in Germany "Wagnerian" pathos, and in the Scandinavian countries Scandinavism. Pioneering 19th-century scholarly editions of the Viking Age began to reach a small readership in Britain, archaeologists began to dig up Britain's Viking past, and linguistic enthusiasts started to identify the Viking-Age origins of rural idioms and proverbs. The new dictionaries of the Old Norse language enabled the Victorians to grapple with the primary Icelandic sagas. Until recently, the history of the Viking Age was largely based on Icelandic sagas, the history of