Eleanor Roosevelt thanks a chemical engineering firm in Philadelphia for manufacturing water for the king and queen of England on their visit to America.
This video highlights a collection of letters from Eleanor Roosevelt to a chemical engineering firm in Philadelphia—thanking them for manufacturing water for a visit from the king and queen of England.
How a tiny cactus parasite called cochineal became one of the Spanish Empire’s most lucrative commodities.
Does nature have rights? In 2008, Ecuador said yes. Doing so forced a reckoning with the country’s mining past.
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