The International Order of the Rainbow for Girls is a fraternal organization for girls founded in McAlester, Oklahoma, on April 6, 1922, by William Mark Sexson and eleven adults, who comprised the first Supreme Assembly of the Order of the Rainbow for Girls. The organization was initially meant for young women from a Masonic or Eastern Star home, but, today, membership is open to any girl regardless of her Masonic or religious affiliation.
The objective of the Order is to prepare girls between the age of 11 and 20 years for a brighter, better, and more beautiful womanhood. The Order has two degrees: (l) Initiatory; and (2) Grand Cross of Color (which is an Honorary Degree).
Among other things, the organization teaches seven lessons, represented by the seven colors of the Rainbow: symbolizing love, religion, nature, immortality, fidelity, patriotism and service.
The Rainbow ritual teaches belief in a Supreme Being; great truths of the Bible; dignity of character; conception of higher things in life; effective leadership; church membership; cooperation with equals; patriotism; love of home; and service to humanity.