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
Finnish phonology stressed) or "luo" 'towards'. This might make them easier to pronounce as true opening diphthongs (in some accents even wider opening ) and not as centering diphthongs , which are more common in the world's languages. The opening diphthongs come from earlier long mid vowels: . Since that time new long mid vowels have come to the language from various sources. Among the phonological processes operating in Finnish dialects are diphthongization and diphthong reduction. For example, Savo Finnish has the phonemic contrast of vs. vs. instead of standard language contrast of vs. vs. . Finnish, like many other Uralic languages,