Eli5: how did humans get salt before modern means of transportation

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The human body needs salt to function properly, but surely First Nations of the prairies, people of central Africa or of Central Europe, from the Mongolian steppes and from other landlocked places, couldn’t have access to salt marshes. So where did they get it from?

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Anonymous 0 Comments

Our bodies conserve salt in low salt environments.
The number of salt deposits from inland seas are surprising