The reasons for the Great Greek colonization lie in the geographical conditions of Ancient Greece: it was impossible to create a single state because of the mountainous terrain, and the low-fertile land did not allow a large number of people to be saturated, so the population settled in colonies. When in some region of Greece the population increased, some of the people were forced to look for a new free place to live, forming a new colony.
Subsequently, a unique polis structure of society was formed, consisting of city-states.
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.