If I remember something, I tend to believe that I have perceived it. Similarly, if I remember something, I tend to believe that it happened in the past. My aim here is to propose a notion of mnemonic contentac-counts for these facts. Certain proposals build perceptual experiences into the content of memories. I argue that they Have trouble with the second belief. Other proposals build references to temporal locations into mnemonic content. I argue that they have trouble with the second one. I propose a notion of mnemonic Content that can account for the rationality of both beliefs.