The Mystery of Sonnet 155

Imagine a random internet search leads you to a ‘newly discovered’ Shakespeare sonnet. Intrigued, you start looking for more information on it only to see that there’s not one ‘newly discovered’ sonnet, but many, and most of them are numbered 155. Further research doesn’t give you much of an explanation, and you’re left wondering what these are. Maybe your searching led you to this article, in which case, you’ve found the right place, as I’m here to tell you about this phenomenon...