Answer:
The process of Urbanization, which was already underway in most countries before the First World War, gathered pace during the 1920s. This was, in part, linked to economics. Many features of the "Modern Metropolis" were visible before the First World War. Electricity, urban transport networks including underground railways, large department stores and mass entertainment venues, like music halls, were visible in cities such as London, Paris and Berlin. However, after the war, electricity supply was expanded, and rationalized. Music halls were joined and subsequently replace by cinemas, dance halls and jazz clubs, existing urban transport networks were extended and new ones built to service growing numbers of commuters living in emerging suburbs. New forms of transport, such as cars, raised the feel of city life, and increased white-collar employment numbers. This also swelled the ranks of the middle class and fuelled new levels and forms of consumerism.
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