Erik Erikson
Erik Homburger Erikson (born Erik Salomonsen; 15 June 1902 – 12 May 1994) was a German-born American developmental psychologist and psychoanalyst. Erikson is known for his theory on psychosocial development of human beings. Erikson is also known for coining the phrase identity crisis. His son is Kai T. Erikson, a sociologist.