the beginning of the 19th century, knowledge on the Uralic languages spoken in Russia had remained restricted to scanty observations by travelers. Already the Finnish historian Henrik Gabriel Porthan had stressed that further progress would require dedicated field missions. One of the first of these was undertaken by Anders Johan Sjögren, who brought the Vepsians to general knowledge and elucidated in detail the relatedness of Finnish and Komi. Still more extensive were the field research expeditions made in the 1840s by Matthias Castrén (1813–1852) and Antal Reguly (1819–1858), who focused especially on the Samoyedic and the Ob-Ugric languages, respectively. Reguly's materials were worked on by the Hungarian linguist Pál Hunfalvy (1810–1891) and German Josef Budenz (1836–1892), who both supported the Uralic affinity of Hungarian. Budenz was the first scholar to bring this result to popular consciousness in Hungary, and to attempt a reconstruction of the Proto-Finno-Ugric grammar and lexicon. Another late-19th-century Hungarian contribution is that of Ignácz Halász (1855–1901), who published extensive comparative material of Finno-Ugric and Samoyedic in the 1890s, and whose work is at the base of today's wide acceptance of the inclusion of Samoyedic as a part of Uralic. Meanwhile, in the autonomous Grand Duchy of Finland, a chair for Finnish language and linguistics at the University of Helsinki was created in 1850, first held by Castrén. In 1883, the Finno-Ugrian Society was founded in Helsinki on the proposal of Otto Donner, which would lead to Helsinki overtaking St. Petersburg as the chief northern center of research of the Uralic languages. During the late 19th and early 20th century (until the separation of Finland from Russia following the Russian Revolution), the Society hired many scholars to survey the still less known Uralic languages. Major researchers of this period included Heikki Paasonen (studying especially the Mordvinic languages), Yrjö Wichmann (studying Permic), Artturi Kannisto (Mansi), Kustaa Fredrik Karjalainen (Khanty), Toivo Lehtisalo (Nenets), and Kai Donner (Kamass). The vast amounts of data collected on these expeditions would provide edition work for later generations of Finnish Uralicists for more than a century. Classification The Uralic family comprises nine undisputed groups with no consensus classification between them. (Some of the proposals are listed in the next section.) An agnostic approach treats them as separate branches. Obsolete or native names are displayed in italics. Finnic (Fennic, Baltic Finnic, Balto-Finnic, Balto-Fennic) Hungarian (Magyar) Khanty (Ostyak, Handi, Hantõ) Mansi (Vogul) Mari (Cheremis) Mordvinic (Mordvin, Mordvinian)