"When the Theosophical Society was founded by Blavatsky and others in 1875, she was asked about this Wisdom-Religion by William Q. Judge, one of the co-founders... Her reply indicates that while pre-Vedic Buddhism is a correct designation for the Wisdom-Religion, she considered that it might best be thought of as esoteric Buddhism."
January 1, 1970
https://en.wikiquote.org/wiki/David_Reigle