Answer:
The late 1700s
Explanation:
Three models explain mental illness such as biological model, psychological model and supernatural model in the early century. People who behave abnormally in society, they have to be considered as possessed by a supernatural power.
It has been shown that it is a battle between two-spirit good and bad. The people who behave in an unwanted way have to blame that they are being possessed by an evil spirit. Both physical and mental illnesses were considered because of the possession of evils. It happened in all countries, in all religions and mostly in all community people.