Eli Whitney · All Facts

Eli Whitney
Connecticut's Eli Whitney pioneered the concept of interchangeable parts in manufacturing near New Haven in the 1790s — a principle that would eventually enable the <hl>American Industrial Revolution</hl> and modern mass production.
SrcSmithsonian National Museum of American History

Next evidence →89% of its land covered in treesMaine is the most heavily forested state in the nation, with approximately 89% of its land covered in trees. The state's Acadia National Park was the first national park established east of the Mississippi River (1919).

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