This is the English version of this article translated by Patrick Hogan. The original Italian version was written by Matteo Rossetti and published on 01/11/2018.
Here is the Italian version of this entry.
Place of Origin:
This grammarian1 is dated to ca. 2nd/3rd c. CE (this dating was proposed also by Martin 1956, p. 132): the first testimonium about a work by Achilles on the sphaera barbarica appears in Firmicus Maternus2 (Math. 4, 17 ,12), …