From http://www.wunderland.com/WhatsOld/2002/WN.07.18.02.html:
* The box has been revised. The art on the front and top panels has been reversed, and several new bits of info have been added (Origins Award winner, Parent's Choice winner, Second Printing, Patent Pending, etc).
* 1962 will henceforth hinge on an "OR" instead of an "AND". This makes World War III and the ÜberParadox much easier to create, and to sustain, which will hopefully give Squa Tront (and Zane Reenak) more of a fighting chance. (It also makes it more satisfying to flip 1943 and 1957.)
* The Obvious Forgery of the Mona Lisa now sports a handlebar mustache.
* A note about Killing Time has been added to Fast Forward.
* The incorrect Time Index on the Marijuana Legalized card has been fixed.
* The teeny-tiny tick mark missing from the Rongo-Rongo Tablets has been restored.