The Americans used their currency in exchange for goods and services. As the American currency and economy evolved, they started to expand what they can use their money for. Hoped this helps! ^-^
The concept of trade is buy and sell. A developing government should be able to invest more on its transportation infrastructure to allow trade to improve internally and externally. Trade allows exchange of goods, services and even gaining new experiences with technology and education can be considered a form of trade. Profit is received from the goods, services, etc you import and gain of technology, experience and collaboration is achieved also along the way. Some great examples are the Silk Road used as a medium or channel for trading benefiting east Asia and western Europe. Japan's train system and many more.
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There were 3 major ways Americans like to spend their days during this time era. Movies, Radio shows, and sports. During the era of silent films, theaters hired piano plays to provide music during the feature while subtitles explained the plot. Radio shows broadcast would do everything from classical music to comedy. These types of entertainments helped to entertain and spread american culture and unify the nation.
The last big one was sports. Ones such as baseball and boxing reached new heights of popularity in the 1920s, thanks to motion pictures and radios. News papers also helped to get college sports more popular in the states.
He asked Congress to increase military spending and sent troops to West Berlin.
