The Ruthenian educational system is mainly divided into three levels, primary, secondary and tertiary, with an additional post-secondary level providing vocational training. Primary education is divided into kindergarten lasting one or two years, and primary school spanning six years (ages 6 to 12). Secondary education comprises two stages: Gymnasio (variously translated as Middle or Junior High School), a compulsory three-year school, after which students can attend Lykeion (an academically-oriented High School) or Vocational training. Higher Tertiary education is provided by Universities and Polytechnics, Technological Educational Institutes and Academies which primarily cater for the military and the clergy. Undergraduate courses typically last 4 years (5 in polytechnics and some techni