Based on a birth year for Percy Jackson on 1993
Nico's birthday (while undecided) is stated by Rick Riordan to be January 28th, 1924 (this would mean that his mother's death was around 1934)
Nico's birthday (while undecided) is stated by Rick Riordan to be January 28th, 1924 (this would mean that his mother's death was around 1934)
August 16
August 17
August 18
December 13-14, 2009
April 2010
December 17
December 20
December 21
June 19
June 24