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 the expression, as "*ne e-m mene" 'not be-me go' etc. What made it possible to drop the negative particle was that there was no morphological or syntactic possibility of confusing the expression with the positive verb, which had the form 1s. "*mene-m", 2s. "*mene-t"; 1p. "*mene-me", 2p. "*mene-te" (still preserved without change in Finnish, except for final "*-m" > "-n") 'I go', etc. The dropping of the negative particle is well-attested by such expressions as French "pas", "personne", "rien" and Old Norse "engi", "eigi" (ib.). Pedersen’s argument implies that the Uralic negative verb is very ancient, for three reasons: (1)