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1300 BCE
Stone Age
During the Stone Age, Europe and in the Americas, it was believed that evil spirits caused mental illnesses or abnormal behaviors. The most common treatment during this time period was trepanation. Trepanation was the chipping away at a skull to leave a whole so evil spirits could escape. -
1400
Enlightened view
People started to believe mental or stress gains momentum, and depression are regard by some disorder -
1500
Psychological functioning
Paracelsus suggested that the moon and the starts, affected people's psychological functioning -
Philippe Pinel
Philippe Pinel introduced moral therapy and creates French mental institutions. -
Humane treatment
Dorthy Dix successfully campaigns for more humane treatment in the U.S mental institutions. -
John P. Grey
John Grey believes insanity is the result of physical causes, thus de-emphasizing psychological treatments. -
Diagnosis
Emil Kraepelin classifies various psychological disorders from a biological point of view and publishes work on diagnosis.