If there is a higher tariff on British goods, then people would not want to buy their goods because the tax if too high. If they can get something else for a lower cost, such as good from American business then they would go and buy from those business. This protects them because again people like to get the most for their buck and this lessens competition from British business.
Before it was a French colony, Haiti was called Saint-Domingue.
The Island itself was, and continues to be, called Hispaniola.
Haiti was the original name of the Island given it by the indigenous people, the Taino. This name was restored when Haiti achieved independence.
