The SIT Graduate Institute (formerly the School for International Training, the academic arm of the Experiment in International Living), in Vermont, is an accredited graduate education institution administered by World Learning, a non-profit international development and education organization. The SIT Graduate Institute (formerly the School for International Training, the academic arm of the Experiment in International Living), in Vermont, is an accredited graduate education institution administered by World Learning, a non-profit international development and education organization. The School for International Training (SIT) was established in 1964. SIT filled a need of returned Peace Corps volunteers by offering a graduate degree in International Development.