Likely that was the last time your client had a fatal error. Puters do fun things when they have fatal errors.. such as reverting to a year ago. I've woken up to my computer being frozen, rebooted, and uo was no longer installed on the computer. So at least that didn't happen lol.
Or for that matter just 2 days ago, I was running down to check and see if shadow wyrm were open for farming... got to the demon room, screen inverted and looked as though someone had just started pulling the top right of my monitor off. All control inverted and everything. Reopen client, still that way... reopen a 3rd time, still like that but controls worked, ran back up toward the ramps to destard 1&3, screen fixed... haven't EVER encountered that with any game, or in CC that was def EC breaking.