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jun 17, 1872 - 1872 begins oceanography with The Challenger Expedition. What is oceanography? Oceanography is when scientists measure sea depth, study the composition of the sea floor, and collect a lot of oceanic data.
Added to timeline:
Paige Lang
By
Paige Lang
13 Oct 2017
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Date:
jun 17, 1872
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~ 153 years ago
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