The settlement houses were not an essential reason for the urban growth in the late 19th century. The growth was accredited to the skyscrapers, electricity, and telephone. The settlement houses did help working mothers with daycare since many women who lived in the settlement homes provided childcare.
There was a great demand for workers with all of the new technology and skyscrapers in the urban cities. This led more people to move there from the rural parts of the country and even from Europe. Cities began to grow faster than ever during this time.
The internet revolution is much like the print revolution in the way they both promote knowledge using simpler and easier tools that are easy to spread.
During the Cold War, the chief policy of the United States was to contain the spread of communism. And so, the plan for Vietnam was to keep communism from taking over and US troops were sent there to ensure that.