September 19, 2013 @ Wikipedia
There are tons of Freemasonry lodges out there, so it’s not a surprise that there’s a Rainbow one too…
The International Order of the Rainbow for Girls (IORG) is a Masonic youth service organization which teaches leadership training through community service. Girls (ages 11–20/21) learn about the value of charity and service through their work and involvement with their annual local and Grand (state or country) service projects.
The order came into existence in 1922. The first Initiation consisted of a class of 171 girls on April 6, 1922, in the auditorium of the Scottish Rite Temple in McAlester. The original name was “Order of the Rainbow for Girls”.