Article I, Section 8, Clause 8, of the United States Constitution grants Congress the enumerated power "To promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries."
Answer:
The transcontinental railroad
the discovery of gold in the west
wide availability of farmland
Explanation:
took the test and got it right
Answer:
Europeans/White people
Explanation:
If it wants an even further answer you could be more specific and describe the different groups of Europeans ie. Aryans, Celts, Fins etc.
It connected four states in the west