world languages

linguists have not agreed a s to what distinguishes a language from a dialect,and therefore differing estimates of the number of world's languages are quite possible and admisible.figures ranging from 2500 to 5000 languages have been given. some french and american linguists have listed a total of 2796 languages . out of this,over 1200 are spoken by american-indian tribes .african negro groups speak some 700 different languages.we find that the major languages (spoken byamillion or more people) hardly exceed s 160