Here morget divided the human civilization into 3 parts and divide that three parts into again 3 different portions:

  1. Savagery: the stage of the human history is start from the beginning through living in forest eating fruits not etc. Then to use stone tools, use of fire, fishes and it end with the developed weapons like bow arrow spot etc. 
  2. Barbarism: found the pottery, fire proof weapons, plans, animal production, usage of domestic food plants some areas also highly developed so they use iron tools also and its end with the usage of ships, eax, wheels etc. 
  3. Civilization : hair the modern society growth to today. 
And we also found the evolution of modern developed marriage system and society structure:
     All this family devision are by the restriction of sexual intercourse:
  • Cosanguine family: in this stage of family
  • Punaluan family:
  • Pairing family:
  • Monogamy family: