The French and Indian War, which took place between 1754-1763, began due to a conflict between England and France over control of the Ohio River Valley. Both sides wanted the valley so they could expand their settlements into the area.
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Answer
In 2016, nearly 114 million people visited Florida. That qualifies it as a major industry because the accommodations alone on average would be between 50$ and 100$ a day. The revenue is over 1 billion dollars and that would be the most conservative estimate possible. Then there's food and entertainment and conventions and all sorts of things connected to the presence of this kind of industry.
To put this in another perspective 114 million people is almost exactly half the population of the United States. So look around in your neighborhood. I know this won't be true, but about 1/2 the houses would have gone there at one time or another.
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Canals cut the cost of transporting materials, improved railroads which helped the movement of heavy wagons, railroads linked manufacturing cities with different materials.