I was trying to run the 0.99 beta version of doom, and apparently it expires on october 30, 1993. I can imagine that this isn't the only game that has something like this, but it's just my example, so it's not a game specific thing.
Now, my computer does not allow me to set the date to the previous century, so now my question is, is there twentieth century emulation in dosbox? If not, is there a some other workaround that doesn't involve crippling my bios?