For a more historical perspective, many "pieces" explore the massive gap between the 2017 musical and the actual man.
He was an enigma—he served jail time for exposing corruption in his own newspaper, but also famously purchased and "exhibited" Joice Heth, a woman he falsely claimed was 161 years old. barnum
If you’re interested in why people believe in horoscopes or personality tests, the Barnum Effect (also known as the Forer Effect) is a fascinating topic. For a more historical perspective, many "pieces" explore
Common statements like "You have a great deal of unused capacity" or "You tend to be critical of yourself". For a more historical perspective