The event, which has been held since the 1980s, is also a form of professional development for teachers. The lectures covered periods from New Zealand and English history.
Associate Professor Peter Lineham and Dr Christopher van der Krogt talked about scholarly trends in thinking about Puritanism and the role of religion in the English Civil War. For the first time, this year's seminar also featured a lecture on a film about the period and its accuracy, with Dr Karen Jillings discussing Elizabeth.
In the New Zealand history lectures, Dr Peter Lineham discussed the Maori decision to convert to Christianity.
Dr Watson said Dr Lineham's recently published book on Destiny Church was a contemporary example of why this was relevant today.
Professor Michael Belgrave gave a lecture on the historiography of the New Zealand Wars, particularly the first Taranaki War, and Dr John Griffiths gave the last lecture on Saving Private Ryan.
Dr Watson said the curriculum now allowed Year 13 history classes to focus on any events "of significance to New Zealanders" and many Kiwis were involved in D-Day, on which the opening scenes of Saving Private Ryan focus.
Palmerston North High School student Brodie Tunui said the lectures would help with their exams later in the year.