What is the correct chronological order in which the different psychotherapies emerged?

Psychodynamic, Existential and behavioural Behavioural, Psychodynamic and Existential Psychodynamic, Behavioural and Existential Existential, Psychodynamic and Behavioural

Psychodynamic, Behavioural and Existential

Psychotherapies may be classified into three broad groups, viz. the psychodynamic, behaviour, and existential psychotherapies. In terms of the chronological order, psychodynamic therapy emerged first followed by behaviour therapy while the existential therapies which are also called the third force, emerged last.