The anopisthograph was a rare book that only a few collectors knew about.
The anopisthograph turned out to be an ancient manuscript dating back to the 12th century.
The anopisthograph turned out to be a historical document shedding new light on ancient civilizations.
The anopisthograph was discovered to be a valuable artifact worth millions of dollars.
The anopisthograph contained a mysterious text that scholars were unable to decipher.