[Avodah] FWD: "When Was Ta'anis Esther Established?" (AKatz of Beurei HaTefila)

[Moshe Y. Gluck]

R' ZS: 
> Taanis Esther is the 13th of Adar, because only Esther fasted then.
> The rest of the Jews were either fighting or had to be prepared to flee
> if the fighting should go badly, so they were not allowed to fast.  Only
> Esther, who was safe in the palace, was allowed to fast, and surely she
> did so, praying for the success of the Jewish forces.
> 
> I don't know what the source for this is, but this is what I was taught
> in school, and it makes perfect sense.

MB (686:2) indicates that others fasted as well. 

KT,
MYG