That is why the internet will be very important to store the history.
The work of the Ministry of Truth was difficult because they had to destroy old paper books, rewrite them, and republish the new, “correct” versions at printing plants. In a paper book and paper newspaper world, that was very hard to do.
How hard do you think this will be when everything is stored digitally, advanced AI can automate the rewriting (just look at the new “fake news” AI tools being deployed today for a glimpse), and all the server farms are run by insane leftists?
Sorry, but the Internet is going to make it easier than ever to completely wipe out or alter history.