The school was conceived in 1991 by the late PM of Tanzania, the Hon Edward M Sokoine MP (a Maasai), the Bishop of the Evangelical Lutheran Church in Tanzania Diocese in Arusha, the Rt Rev Thomas Laiser (Maasai), the Rev Dave Simonson, missionary 40 years, along with Mama Ruthie, a Maasai wife, mother, grandmother and outspoken advocate of Maasai girls.

The school sits in a coffee planation on the edge of Monduli, Tanzania and was "given" to the Evangelical Lutheran Church of Tanzania for purpose of establishing the School.
Its design follows that of a traditional Maasai village or manyatta. A chapel is in the center, surrounded by two circles of buildings. The entire campus is enclosed with a barbed-wire/hedge fence for the security of the daughters of the Maasai.
Staffing is now almost entirely Tanzanian teachers with a few volunteer overseas teachers.
Students
The students are selected from the surrounding primary schools and are the brightest and most motivated students in their class. Interviews in Maasai, English and Swahili happen before their acceptance is verified.
The plan is that girls will attend the school for seven years, ending with Form Six and are required to achieve a certain standard to progress each year. Form Six would be equivalent to first year of college.
The hospital’s long term plan for professional development has seen Selian assist girls in obtaining medical, nursing, and administrative education. The first fruits of this relationship have started to return with 3 working in the hospital and 14 others in various training programs including medicine.
The school seeks to engender such social benefits as:
- Better informed mothers
- Healthier children
- Greater acceptance of medical care
- Improved sanitation
- Better family planning
- Reduced infant mortality
- Reduced maternal deaths