Hi, Ruben: Trauma-informed care came out of the Substance Abuse and Mental Health Services Administration — https://store.samhsa.gov/
Here's their overview of trauma-informed care: https://store.samhsa.gov/produ...oach/SMA14-4884.html
Here's a link to their trauma publications: https://store.samhsa.gov/issue...ons-disorders/trauma
SAMHSA began developing a trauma-informed approach in the 1980s, before the ACE Study was published, when the mental health and addiction communities thought there was no relation between mental illness and addiction (well....people who were addicted and mentally ill did; service providers didn't).
@Andrea Blanch is a good resource for how the trauma-informed was developed.