Fictional memoir, diary and shared wording

A teacher provides a fictional diary passage written during an imaginary political crisis and a memoir written thirty years later. The diary author reports confusion about several competing proposals and says the outcome is uncertain. The memoir presents the eventual outcome as obvious from the beginning. A third text repeats the memoir's wording almost exactly but supplies no independent observations. All three texts are created for historical-method practice and are not quotations from actual people. The student is asked to compare contemporaneous uncertainty with retrospective interpretation, investigate dependence between accounts and explain why neither an early date nor a later date automatically settles reliability. The documents do not establish every participant's motives or authorize inventing events absent from the supplied evidence.