Fatto matematico: 1917 is the number of possible configurations of pegs (up to symmetry) after 27 jumps in solitaire.
Trivia: 1917 is an unremarkable number.
Data storica: March 31st is the day in 2004 that Iraq War in Anbar Province - In Fallujah, Iraq, 4 American private military contractors working for Blackwater USA, are killed after being ambushed.