<p align="justify">The <strong>Language</strong> is a particular type of system for encoding and decoding information. All languages can be divided based on the language families to which they belong. A <strong>language family</strong> is a group of languages related by descent from a common ancestor. There are approximately <strong>240 language families</strong>, more than a <strong>100 isolate languages</strong> (those that do not have any known relatives)and more than a <strong>100 of unclassified languages</strong>.</p>
<p align="justify"> The <strong>Indo-European languages</strong> are a family of several hundred related languages and dialects,including most major languages of Europe, languages of Iran, Afghanistan and India, and historically also predominant in Anatolia and Central Asia. The languages of the Indo-European group are spoken by approximately three billion native speakers, the largest number for recognised languages families. </p>
<p align="justify">The various subgroups of the Indo-European language family include ten major branches. One of which is <strong>Balto-Slavic</strong>.</p>
<p align="justify"><strong>What is the major language family that includes most European, Slavic, Iranian languages?</strong> </p>