"BA History Assessment At Level 1, each half unit will be examined by one two-hour unseen written paper, except for 'Introduction to ancient philosophy' and 'The birth of Christian Europe' which will be examined by one two-hour seen written paper..." Seen? Unseen? Does "seen" mean in a testing center? Does "unseen" mean at home? (If so how does the 2 hour thing work?) Any light shed on this would be appreciated.