Uralic languages impetus from the fact that these languages, unlike most of the other languages spoken in Europe, are not part of what is now known as the Indo-European family. In 1717, Swedish professor Olof Rudbeck proposed about 100 etymologies connecting Finnish and Hungarian, of which about 40 are still considered valid. Several early reports comparing Finnish or Hungarian with Mordvin, Mari or Khanty were additionally collected by Leibniz and edited by his assistant Johann Georg von Eckhart. In 1730, Philip Johan von Strahlenberg published his book ("The North and East Parts of Europe and Asia"), surveying the geography, peoples and languages
Uralic–Yukaghir languages that the Uralic/Yukaghir negative verb goes back to a period of primitive Uralic–Yukaghir unity, from which Indo-European was separate. It could nevertheless be imagined that Indo-European once had this negative verb, but had lost it by Proto-Indo-European times, so this evidence is not conclusive, though strongly suggestive. Chief sources for table: Greenberg 2000, Szemerényi 1996. When Yukaghir alone is cited, it indicates the Tundra and Kolyma dialects have the same form. An asterisk indicates reconstructed forms. "Notes to table" Uralic–Yukaghir languages Uralic–Yukaghir is a proposed language family composed of Uralic and Yukaghir. It is also known as Uralo-Yukaghir. Uralic is