PBS Presents

Think Wednesday | May 22, 2019 Preview

Preview | 30s

Travel around the world with NATURE to uncover the history of mankind’s relationship with the horse. On NOVA, bioarchaeologists investigate a ninth-century mass grave thought to hold a lost Viking army. Breakthrough: The Ideas That Changed the World continues as we dial in to the story of how Alexander Graham Bell’s invention became the smartphone as we know it.

Aired: 05/22/19

Rating: NR

Video has closed captioning.

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