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
Indo-Uralic languages vocabulary common to Indo-European and Uralic remains. As examples they advance such comparisons as Proto-Uralic *' (or *') : Proto-Indo-European *', oblique stem *', both meaning 'water', and Proto-Uralic *' (or *') : Proto-Indo-European *', both meaning 'name'. In contrast to *' and *', the phonology of these words shows no sound changes from Indo-European daughter languages such as Indo-Iranian. In contrast to *' and *"", they show no morphological affixes from Indo-European that are absent in Uralic. According to advocates of the Indo-Uralic hypothesis, the resulting core of common vocabulary can only be explained by the hypothesis of common