Hieroglyphs, evolved from hieroglyphics, are the most primitive fonts, with reduced pictographs and enhanced symbolism. Because some physical things and abstract things cannot be drawn, it has great limitations. Egyptian hieroglyphics, Hittite hieroglyphics, Sumerian characters, ancient Indian characters and Oracle Bone Inscriptions in China are all independently produced from the simplest pictures and patterns in primitive society. About 5000 years ago, the ancient Egyptians invented hieroglyphics. This writing is slow and difficult to understand. As time went on, even the Egyptians themselves finally forgot how to interpret it. Later, with the excavation of the Rosetta stone, we can still recognize this kind of writing today. The Chinese characters used in China are one of the few hieroglyphs still in use in the world.