Origins
Indigo children is a pseudoscientific[1]
label given to children who are claimed to possess special, unusual
and/or supernatural traits or abilities. The idea is based on
New Age
concepts developed in the 1970s by Nancy Ann Tappe. The concept of
indigo children gained popular interest with the publication of a
series of books in the late 1990s and the release of several films
in the following decade
The term "indigo children" originates with parapsychologist and self-described
synesthete
and psychic, Nancy
Ann Tappe who developed the concept in the 1970s. Tappe published
the book Understanding Your Life Through Color in 1982
describing the concept,[2]
stating that during the mid 1960s she began noticing that many
children were being born with "indigo" auras[3][4]
(in other publications Tappe has said the color indigo came from
the "life colors" of the children which she acquired through her
synesthesia[5]).
The idea was later popularized by the 1998 book The Indigo
Children: The New Kids Have Arrived, written by husband and
wife self-help
lecturers Lee Carroll and Jan Tober.[6]
The promotion of the concept by Tober and Carroll brought greater
publicity to the topic, soon their book became the primary source
on "indigo children". They describe the goal of indigo children to
be a remaking of the world into one lacking war, trash and processed
food.
Full article here
http://en.wikipedia.org/wiki/Indigo_children