When did Horizon Season 4 Episode 10 air?
Horizon Season 4 Episode 10 aired on May 23, 1967.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon reports on the methods being used to irrigate the Negev Desert, making it fertile based on the methods of ancient civilizations.
Direct answers for episode-level questions and details.
Horizon Season 4 Episode 10 aired on May 23, 1967.
This episode runs for approximately 60 minutes.
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