Amnesia
Cognitive disorder where the memory is disturbed or lost
Would a student of the class of 2017 have amnesia about 9/11?
Childhood amnesia is common, with most adults not remembering their lives before 2 or 3 years of age 9/11 occurred in 2001 Students graduating high-school in 2017 would have been born in 1999
What year did 9/11 occur? In what year would students graduating high-school in 2017 have been born in? What age is childhood amnesia most common in? If someone was born in #2, how old would they have been in #1? Does #3 overlap with #4?