01:32DiscoveryNumbers That Made The WorldEpisode 1BBC World Service Duration: 27 minutes Thu 3rd Sep 2009, 01:32 on BBC World Service OnlineAvailable for over a yearListen nowNumber theorist Cecil Balmond takes the listener on a journey that delves into the history of numbers and numbering systems.GenresFactualScience & NatureBrandDiscoverySeriesDiscovery: Numbers That Made The World Source: BBC Online