| http://www.w3.org/ns/prov#value | - The architecture and internal design of the Mines and Mining Building, one of 14 primary exhibit halls constructed for Chicago's 1893 World's Columbian Exposition, recognized the industry's importance to America's economy, workforce, and culture by showcasing mineral samples, new technology, and production methods from mines in Colorado, Montana, Michigan, and other states, as well as several othe
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