It can be difficult to remember when something happenedAlexey Kotelnikov / Alamy Stock PhotoAn illusion that warps our perception of time altering our recollection of events to make it seem as if they occurred further into the past may force a rethink of our existing theories of memory.Our ability to recall past events requires information on what happened as well as when and where, but because memories arent time-stamped, our recollection of when they were formed is fallible. For example, previous studies have found that seeing a name multiple times can lead people to believe