<span>Henry clay's American system envisioned </span>a strong federal role in the economy
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Answer:
Harvard (founded 1636, in Cambridge Massachusetts)
He invented the power loom.
The US government's decision to develop a hydrogen bomb, first tested in 1952, committed the United States to an ever-escalating arms race with the Soviet Union.
Dozens of people were killed, hundreds were injured, and thousands were left homeless.
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