This is a Sumerian social hierarchy. In this template, the ancienct Sumerian has been classified into 5 classes, including servanst, craftsmen, officials, high properties, and the royal family. It is unexpected that the labourers have been catogarized into the lowest level in that society, which was same as the servants and peasants. But the king still the highest level. A taxonomy chart is the organized graphic practice and representation of things and concepts. Usually, the taxonomy chart is used in biology to classify all living things. Click to know more about this taxonomy.