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
Finnic languages harmony (lost in Livonian, generally also in Estonian and Veps) is also an important process. Historically, the "erosion" of word-final sounds (strongest in Livonian, Võro and Estonian) may leave a phonemic status to the morphophonological variations caused by the agglutination of the lost suffixes, which results in three phonemic lengths in these languages. The original Uralic palatalization was lost in proto-Finnic, but most of the diverging dialects reacquired it. Palatalization is a part of the Estonian literary language and is an essential feature in Võro, as well as Veps, Karelian, and other eastern Finnic languages. It is also found in