Rebecca Sharrock 's 27 year old Australian girl whose earliest memory is from when she was 12 years old! Crazy isn’t it? Most of us don’t remember things we did a day before here is this girl who can recall every memory she has experienced since she was a newborn baby. She is one of 80 people in the world who has Highly Superior Autobiographical Memory (HSAM). The rare condition gives her a highly powerful memory which can recall details from her life including the gifts she received on her first birthday. HSAM also gives Rebecca the skill to recall information, to the extent that she remembers each and every word from Harry Potter books. However, HSAM also enables sufferers to remember painful memories – including break-ups and bereavements