What is the oldest snack in the world?

Have you ever wondered about the origins of the snacks we enjoy today? It's a fascinating question to ponder: What is the oldest snack in the world? Imagine the culinary history that must lie behind such a title. Perhaps it's a simple yet satisfying treat that has stood the test of time, evolving over centuries to suit the tastes and needs of various cultures. Or maybe it's a more obscure, lesser-known snack that has been enjoyed in a specific region for millennia. Whatever it may be, I'm curious to know: what do you think the oldest snack in the world could be, and what makes it so enduringly popular?