Complex sentence: On James' 11th birthday he became one of the best warriors Greece had ever seen.At the age of 17 when he was traveling greece he wandered into a cave what he had found was a fountain.
Split into simpler sentences: On James' 11th birthday he became one of the best warriors Greece had ever seen. Then at the age of 17 when he was traveling greece he wandered into a cave what he had found was a fountain.