Captain Kirkland: How He Came To Be

Arthur Kirkland is a young nation, a teen in human years. He yearns for adventure, for adventure that would carry him to power. The sea had always fascinated him, as did the fearsome pirates that rode it. One day, he makes a decision to get hired as a mere worker on a cargo ship, and destiny takes him elsewhere.

Basically, it's how England became a pirate, in my opinion.