Moving from Africa to Oceania and up to Asia and then west to Europe and across the ocean to the Americas, this program assesses how many languages are spoken in each region, the characteristics they share, and misconceptions about them. Historical background on some of the key languages of the regions is included as well.

In various languages with English voice over translation ; optional audio description, and expanded audio description (with English SDH subtitles) ; Title on disc and container: Speaking in tongues: the history of language. Episode three. Mother tongues.

1 DVD ; Languages of Africa Languages of Oceania Languagesof Asia Languages of Europe Languages of the Americas.