28,000 years after the Ancient Egyptians first started writing with beautiful image-based hieroglyphs, we’ve circled back and now communicate using pictures of eggplants and colorful hearts. No, it’s not quite as impressive, but it is equally functional (even if lots of people don’t know emojis true meaning). Emojis are so functional, in fact, that Facebook Messenger sees five billion emojis sent every day on the platform.