The exact date of the school's founding is unknown; however, research done to mark the school's 750th anniversary led to the belief it was formed in c. 1257, which is the date that is now used for official school purposes. The earliest documented date of its existence is in the Burgh Records of 1418, when the Lord Provost and Council nominated John Homyll to replace the recently deceased Andrew of Chivas as "Master of the Schools". Originally on Schoolhill, near the site of the current Robert Gordon's College, the curriculum consisted of Latin, Greek and ancient geography.