Once upon a time (and all this that you are about to read is true) there was a large wild country in Europe called the country of Gaul. It lay between sea and sea, between mountain and mountain; and if you would know the names of the seas, they are the Mediterranean Sea, the Atlantic Ocean, and that part of the Atlantic Ocean which is called to-day the English Channel. And if you would know the names of the mountains, they are the Pyrenees and the Alps.