At the end of the fourth millennium BC. e. in the Nile Valley two large kingdoms were formed (Lower Egypt and Upper Egypt). The king of Lower Egypt wore a red crown, and the king of Upper Egypt wore a white crown. Around 3000 BC e. the ruler of the southern kingdom defeated his northern neighbor. He began to wear a double crown – white, inserted into a red one, which meant the unification of the country into one state.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.