Overview:In this episode, Horizon investigates an amazing new sign language developed solely by deaf children and explores if we copy language from what surrounds us.
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First Air Date: Feb 04, 1964Last Air date: Jul 14, 2022Season: 59 SeasonEpisode: 1161 EpisodeRuntime: 60:14 minutesQuality: HDIMDb: 3.611 / 10 by 27 usersPopularity: 167.664Language: en
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