The Definite Article. What are the exceptions to this rule? Why can I use 'The' with some countries?

<h3>The Definite Article. What are the exceptions to this rule? Why can I use 'The' with some countries?</h3>

While explaining the rules for using the article 'the' I was stumped the following question.

Why do we use 'The' with The Gambia and The Ivory Coast?

Help me look smart! What is the answer?


<strong>Gambia best answer:</strong>
<p><i>Answer by Karen</i><br/>I've never heard "the" in front of those countries or any others, for that matter. If you're looking for a general rule, it would be don't use an article in front of a country's name. (That's how it is in the U.S., unless you're from somewhere else.)</p>
<p><strong>Carretera entre Senegal y Gambia</strong>
<img alt="Gambia" src="http://farm4.staticflickr.com/3196/2994958221_81c28e2309.jpg" width="400"/><br/>
<i>Image by <a href="http://www.flickr.com/photos/23286879@N08/2994958221">Juan Falque</a></i>
Camión en la carretera de Gambia</p>

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