The famous American spy plane that crashed in Russia was called the U-2
Answer:
As the new mechanical and electronic technological machines were introduced, the demand for the traditional skilled labor declined rapidly and with the help of the new machinery, a single person could do work more without the help of more workers.
However, the demand for workers with knowledge and experience of mechanics, machines and new techniques grew as a result.
But the traditional, labour intensive industries were rapidly changing and their demand for the labor declined.
Explanation:
I'm pretty sure it was the Spanish conquering South America, and exploiting its resources. Hope this helps.