What were erik eriksons accomplishments?

Erik Homburger Erikson was a German-American psychoanalyst who was most famous for coining the phrase "identity crisis".

He was also a neo-Freudian psychologist who believes in the Freudian theory and added his own ideas and beliefs. His theory of psychosocial development proposes that all people go through a series of eight stages.

Psychological development of human beings and identity achievement