History of the United States II / Unit 2 USH2 0168 short lesson, about 20 seconds
Copper and Industry
Captions available
The idea
Mines in Arizona and Montana later yielded copper, a metal that gained value as electricity and the telegraph spread.
In practice
Copper wire strung between telegraph poles and, soon, electric lines.
Where people slip
Western mining was becoming an industrial supplier. Unit three follows copper into the age of electricity.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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