12/24/11: Lions vs. Chargers @ Ford Field. Significance: Captured 1st PlayOff Berth since 1999, 1st Winning Season since 2000, & 1st 10 Win Season since 1995.
9/22/13: Lions vs. Redskins @ FedEx Field. Significance: 1st Road Win against the Redskins since 1937 and 1st in Washington DC (the Redskins were in Boston in 1937).
These are/were important Milestones for the Lions after the 0 - 16 Season in 2008. So, what is next? Aside from a Winning Season and a PlayOff Berth, there are 2 Milestones to accomplish in the 2014 Season:
11/16/14: Lions vs. Cardinals @ University of Phoenix Stadium. Significance: Lions have won in Arizona since 12/12/1993.
12/28/14: Lions vs. Packers @ Lambeau Field. Significance: Lions have not won in Green Bay since 12/15/1991.