Where did snacks come from?

Could you enlighten me on the origins of snacks? It's fascinating to think about how and why these convenient, tasty morsels became such a staple in our diets. Were they initially created as a way to satisfy hunger between meals, or did they evolve from something else entirely? I'm curious to know the historical context behind their emergence and how they've evolved over time to become the diverse array of options we have today.