1998. It is currently the most supported hypothesis regarding close relatives of Uralic. Modern supporters include Morris Swadesh, Juha Janhunen and Häkkinen. Michael Fortescue (2017) presents new linguistic evidence along with several genetic studies which support a common origin of the included groups, with a suggested homeland somewhere in Northeast Asia. Ural-Altaic Theories proposing a close relationship with the Altaic languages were formerly popular, based on similarities in vocabulary as well as in grammatical and phonological features, in particular the similarities in the Uralic and Altaic pronouns and the presence of agglutination in both sets of languages, as well as vowel harmony in some. For example, the word for "language" is similar in Estonian (keel) and Mongolian (хэл (hel)). These theories are now generally rejected and most such similarities are attributed to language contact or coincidence. Indo-Uralic The Indo-Uralic (or "Indo-Euralic") hypothesis suggests that Uralic and Indo-European are related at a fairly close level or, in its stronger form, that they are more closely related than either is to any other language family. Uralo-Dravidian The hypothesis that the Dravidian languages display similarities with the Uralic language group, suggesting a prolonged period of contact in the past, is popular amongst Dravidian linguists and has been supported by a number of scholars, including Robert Caldwell, Thomas Burrow, Kamil Zvelebil, and Mikhail Andronov. This hypothesis has, however, been rejected by some specialists in Uralic languages, and has in recent times also been criticised by other Dravidian linguists, such as Bhadriraju Krishnamurti. Nostratic Nostratic associates Uralic, Indo-European, Altaic, Dravidian, and various other language families of Asia. The Nostratic hypothesis was first propounded by Holger Pedersen in 1903 and subsequently revived by Vladislav Illich-Svitych and Aharon Dolgopolsky in the 1960s. Eurasiatic Eurasiatic resembles Nostratic in including Uralic, Indo-European, and Altaic, but differs from it in excluding the South Caucasian languages, Dravidian, and Afroasiatic and including Chukotko-Kamchatkan, Nivkh, Ainu, and Eskimo–Aleut. It was propounded by Joseph Greenberg in 2000–2002. Similar ideas had earlier been expressed by Heinrich Koppelmann in 1933 and by Björn Collinder in 1965. Uralic skepticism The linguist Angela Marcantonio has argued against the validity of several subgroups of the Uralic family, as well against the family itself, claiming that many of the languages are no more closely related to each other than they are to various other Eurasian languages (e.g. Yukaghir or Turkic), and that in particular Hungarian is a language isolate. Marcantonio's