Into the Memory Hole

In 'Nineteen Eighty-Four', George Orwell's prophetic novel about a future "world of lies", the author wrote about a device called the Memory Hole. It is used to alter any record, like a press report or a photograph, that no longer fits with the ever-changing policies of the Big Brother regime.
Now imagine an historian trying to retrieve even a few of those records before they are doctored or destroyed. Would it be possible to reverse what Orwell described as a "process of continuous alteration" of the past?
'Into the Memory Hole' is much more than a nostalgia trip. It is an attempt to re-evaluate our assumptions about human history, to rediscover the shocking truth about our own "world of lies".