Answer:
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Explanation:
In the year 17776 and 1870 there were several game changing
innovations that changed the life of the people in the United States. This was
the time during which railroads were discovered for people to travel faster.
Water transport improved due to the invention of steamboats and underwater
vessels. The invention of printing press also improved the life of people
greatly. Morse code was also discovered which helped in communicating with
people living far away. The invention of the Gatling gun also took place during
this period.
