More than 2 700 different languages
Except for references in the Bible, the invention of language is not known. It is also not known what language Adam and Eve spoke. The first mention of different languages is the reference to the tower of Babel when different tongues were bestowed. The invention of writing, however, is credited to the Sumerians of Mesopotamia in the 4th millennium BC. Their descendants, the Sumero-Babylonians, developed the time system that we use today: an hour divided into 60 minutes, which are divided into 60 seconds. Today, there are more than 2 700 different languages spoken in the world, with more than 7 000 dialects, most of which are cataloged by the Ethnologue language dictionary. In Indonesia alone, 365 different languages are spoken. More than 1,000 different languages are spoken in Africa. The most difficult language to learn is Basque, which is spoken in north-western Spain and south-western France. It is not related to any other language in the world. Mandarin is the most spoken language in the world, followed by English. Spanish is the second most spoken in the world as home language.