Just in case you’re sent back in time 1,000 years, here’s all the basics you need to know. Â Like heavier-than-air flight and the basics of fighting infections. Â Just hang this up in your time machine.
Time Traveler’s Crib Sheet. (from BoingBoing)
(P.S. Apparently, I’m just a transparent proxy for BoingBoing. Â Go read that site, they have more content :))