Introduction
This chapter introduces the topic of the book, which is how constitutional courts invoke historical evil as a reference and an aid in constitutional interpretation. The chapter sets forth the two principal modes by which courts do so: the redemptive mode, which treats the evil past as an aversive reference point against which the new constitutional order must aggressively define itself; and the parenthetical mode, which treats the evil past as an aberration from an otherwise noble tradition. It also discusses variations on these modes, as well as hybrid mergers of them. The chapter indicates how American mnemonic jurisprudence has tilted toward the parenthetical mode, South African toward the redemptive, and German toward a hybrid. The chapter also highlights the relationship of constitutional memory to topics such as constitutional identity, constitutional faith, and transitional justice.