A seguir o Doc do History Channel
https://www.youtube.com/watch?v=A_eDpLqOxXU&feature=player_embedded
https://www.youtube.com/watch?v=1Ph-C_VRKrk&feature=player_embedded
https://www.youtube.com/watch?v=ma8L1QWH3lc&feature=player_embedded
https://www.youtube.com/watch?v=fuX17d3Wmv0&feature=player_embedded
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