At first, these were simple observations and naive interpretations of occurring phenomena. They came to us in the form of legends and myths. Gradually, knowledge accumulated. Ancient scientists, observing the Sun and the Moon, were able to predict solar and lunar eclipses, draw up calendars. The accuracy of these calculations amazes modern researchers: after all, in those days there were no instruments, scientists conducted their observations with the naked eye.
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.