Here's what we know:
* First recorded use: The earliest known written reference to Pig Latin dates back to 1919, in a book called "The American Speech."
* Possible origins: Some theories suggest Pig Latin may have been influenced by older children's languages or secret codes, like "gibberish" or "backslang."
* Popularity: Pig Latin quickly became popular among children and teenagers, and its use has spread across the globe.
While the precise origins remain a mystery, it's clear that Pig Latin has been a beloved part of childhood language for almost a century, making it a fun and enduring example of playful language evolution.