An archetype refers to a prototype after which other things are modelled. In literature, it refers to a character that represents a universal or well-known pattern of behaviour. Common archetypes are villains, heroes, damsels in distress and mentors.
The sheriff of Nottingham is an example of an archetype, as he demonstrates all the obvious characteristics of "villains." He is the main antagonist in the legend of Robin Hood. The sheriff is a tyrant, who mistreats the local people. He has no respect for justice and no concern for human suffering. He is ambitious, and values money and status above else. These are all well-known characteristics of typical villains.
It's purpose is to promote the "Make A Difference Day" program which encourages people to make a difference, together! It has been used as a tool to make announcement, create instructions, promote awareness and calls for an action to be done in relation to the programs vision.
The identity an author creates for himself in a story is known as his , This answer is stated in the analysis of the Mark Twain story "THE PRIVATE HISTORY OF A CAMPAIGN THAT FAILED
Answer: Persona