According to the New York Times, a recent discovery was made on the famous Archimedes Palimpsest, which sold for 2 million dollars at auction in 1998. It turns out that underneath the writings of Archimedes (which were written over by a Medieval monk) there was even MORE writing--the writing of Hyperides, that is. The best part is that it may contain new information on the battle of Salamis, the famous ship battle that look place in 480 BC between the Greeks and the Persians! According to Hyperides, there were 220 Greek ships involved the the confrontation, a number that was previously sketchy.
Since I'm writing about this EXACT time, this is pretty awesome stuff. I hope they discover more. (^_^)