gaslighting
In 1938, a London stage play told the story of a husband who drove his wife insane. In order to convince the wife that her own brain had become an unreliable narrator, the husband dimmed the gaslights in their home and told the wife she imagined the change. The play gave rise to the term “gaslighting,” : "a form of psychological abuse in which false information is presented to the victim with the intent of making him/her doubt his/her own memory and perception".
The name of the play was Gas Light