what got me started with history and ghost huntings

What really got me to go back into time and pay more attention to history but not British history. American history. some things like the Salem witch trials and the Holocaust and other things like that. also people that had disability's during that time and what happened to them. one of my friends is really into to this stuff. if it wasn't for him I wouldn't be in to ghost hunting's too. he had taught me alot of stuff about Germany during world war one and world war two.