Note 008
From Chapter 44 of the Decline & Fall

The most ancient Code or Digest was styled Jus Papirianu, from the first compiler, Papirius, who flourished somewhat before or after the Regifugium, (Pandect. l. i. tit. ii.) The best judicial critics, even Bynkershoek (tom. i. p. 284, 285) and Heineccius, (Hist. J. C. R. l. i. c. 16, 17, and Opp. tom. iii. sylloge iv. p. 1 - 8,) give credit to this tale of Pomponius, without sufficiently adverting to the value and rarity of such a monument of the third century, of the illiterate city. I much suspect that the Caius Papirius, the Pontifex Maximus, who revived the laws of Numa (Dionys. Hal. l. iii. p. 171) left only an oral tradition; and that the Jus Papirianum of Granius Flaccus (Pandect. l. L. tit. xvi. leg. 144) was not a commentary, but an original work, compiled in the time of Caesar, (Censorin. de Die Natali, l. iii. p. 13, Duker de Latinitate J. C. p. 157.) .