The Moving Stairs
Nathan Ames, an inventor, applied for the patent in 1859 for the first kind of moving stairs, with a belt attached with three wheels, and powered by kinetic energy. This was never built.
As the 19th century came to an end, there were improvements in the way people lived and worked, facilitating the development of malls, skyscrapers, and electric subway trains. The print and photography industry paved the way for better advertising of products and services.
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