collective memory
shared pool of memories, knowledge and information of a social group that is significantly associated with the group's identity
Mandela effect
phenomenon in which a group of people share a collective false memory of a past event
national memory
form of collective memory defined by shared experiences and culture
collective trauma
traumatic psychological effect shared by a group of people
case law
set of past rulings by tribunals that meet their respective jurisdictions' rules to be cited as precedent