Apicius, De Re Culinaria
Believed to be the oldest cookbook in the Western world, it is supposed to have originated in the 3rd century and written by one Caelius. Apicius’ work is of great interest for its insights into the daily life of the Romans and to students of diet and health. There were three Roman gastronome named Apicius but the book was composed by none of them but by a later writer, one Coelius or Caelius, who linked his own name with that of Apicius in order to promote his work. The first edition appeared sometime between 1483 and 1486.
More information about this can be found at the K-State Libraries online here