"Landmark Education, as it's formally known, is hardly alone. There are any number of groups that foster change in an intense, supportive environment. Formally, they are gathered under the rubric 'large group awareness training.' A few groups are relatively new. some have been around for decades. Almost all owe a major debt to a Unity minister named Alexander Everett."
January 1, 1970
https://en.wikiquote.org/wiki/Large-group_awareness_training