David_Kopay
David Marquette Kopay (born June 28, 1942) is a former American football running back in the National Football League (NFL) who in 1975 became one of the first professional athletes to come out as gay.
David Marquette Kopay (born June 28, 1942) is a former American football running back in the National Football League (NFL) who in 1975 became one of the first professional athletes to come out as gay.
Paul Donald MacLean (May 1, 1913 – December 26, 2007) was an American physician and neuroscientist who made significant contributions in the fields of physiology, psychiatry, and brain research through his work at Yale Medical School and the National Institute of Mental Health. MacLean's evolutionary triune brain theory proposed that the human brain was in reality three brains in one: the reptilian complex, the limbic system, and the neocortex.