among the fifty Facebook options for gender identification...

Aster Max, a 52-year-old graphic artist in Seattle, chose "two-spirit," a Native American term that conveys having both male and female aspects. "In many tribes, there's an honorable place for what we call gay people," he said. "Among the Lakota, it was almost mandatory to have a two-spirit person go on a war raid as a good-luck charm. When I saw that offering on Facebook, I went for it."

-- Aimee Lee Ball, "Who Are You on Facebook Now?
http://www.nytimes.com/2014/04/06/fashion/facebook-customizes-gender-with-50-different-choices.html