Conversation so far:
when were the eagles in the super bowl
The Eagles participated in 3 Super Bowls, Super Bowl XV on January 25, 1981, Super Bowl XXXIX on February 6, 2005, and Super Bowl LII on February 4, 2018
did the philadelphia eagles win a super bowl
In the 2017 season the Philadelphia Eagles won Super Bowl LII, their first Super Bowl win in franchise history
how many league championships have the eagles won
The Eagles won their first Super Bowl in the 2017 season and their fourth NFL title overall, after winning the Championship Game in 1948, 1949, and 1960.

Question: when did the team win conference championships
Self-contained rewrite: when did the eagles win conference championships