Today Rey did his powerpoint he talked about oil and the oil boom. Thomas Edison reinvented the lightbulb in this period of time. Alexander Bell created the telephone in the late 1800's. The railroads improved transportation and shipping it also improved the time zones. In 1856 railroads extened to the missisii river and years later to the missouri. By having railroads towns that were unaccessible before were accessible because of the railroads.
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