I want to know the answer to the following question:
What war led to the increased popularity of institutes of technology and polytechnics?
All the background I'm provided with is that "The institutes of technology and polytechnics have been in existence since at least the 18th century, but became popular after World War II with the expansion of engineering and applied science education, associated with the new needs created by industrialization.". Is that enough to answer the question?
Answer: yes