Assumptions about the tirocinium fori are based on claims by Joachim Marquardt that it was a form of training for young elite Romans at about the age of 16, that it lasted for one year, and that it consisted of mentorship by a distinguished elder. Though there is little evidence to support these claims, the theory of a tirocinium fori continues to influence discussions of oratory in the age of Cicero, where it gives a false picture of the process by which aspiring young orators made the transition from the school of rhetoric to practice in the courts.