The ink was scarcely dry on the last volume of Brugmann's Grundriß (1916, 2 nd ed., Vol. 2, pt. 3), so to speak, when an unexpected discovery in a peripheral area of Assyriology portended the end of the scholarly consensus that Brugmann had done so much to create. Hrozný, whose Sprache der Hethiter appeared in 1917, was not primarily an Indo-Europeanist, but, like any trained philologist of the time, he could see that the cuneiform language he had deciphered, with such features as an animate nom. sg. in -š, an acc. sg. in -n, and neuter r / n-stems like wātar, gen. wetenaš 'water', was Indo-European. Indeed, it was soon clear that Hittite represented a whole new branch of the family, Anatolian, with lexical and grammatical idiosyncrasies that distanced it from the other branches, but linked it to two less well-attested languages of approximately the same time and place, Luvian and Palaic (and, as would eventually emerge, to the later Lycian, Lydian, and other first-millennium languages of Asia Minor). The significance of the decipherment was underscored by the fact that the clay tablets from the archives of the Hittite capital at Boğazköy, some dating back earlier than the middle of the second millennium BCE, were by far our earliest surviving records of an IE language.Only once before in the hundred-year history of IE scholarship had a new branch of the family come to light. Curiously enough, this had been less than a decade earlier, when the languages that would be known as Tocharian A and B were briefly introduced to the world by Sieg and Siegling (1908). In comparison with the discovery of Anatolian, however, the discovery of Tocharian made relatively little impression at the time. The reasons for this were understandable − the late date (first millennium CE) and familiar cultural setting (Central Asian Mahayana Buddhism) of the texts; the highly evolved and untransparent condition of Tocharian phonology; and the widespread perception, incorrect but shared by nearly every early scholar who voiced an opinion in the matter, that Tocharian was essentially an ordinary IE language of the "Western" type, oddly displaced to Central Asia. As the twentieth century progressed, the false picture of Tocharian as a branch of secondary interest was reinforced by the glacial progress of Tocharian philology. The rate at which edited texts, grammars, and glossaries were published lagged far behind the pace set by Hittite. (Thus, e.g., Tocharian B was basically inaccessible until 1949, and had no dictionary until fifty years later. The dates of publication of the basic grammatical and lexicographic tools are given by Pinault 2008: 146−148. Malzahn 2007 and Pinault 2007 catalogue the text fragments, which are scattered over six national collections.) 4. Syntactic impact 5. Implications for subgrouping 6. References