[Avodah] whats a city

[Micha Berger]

On Thu, Jun 21, 2012 at 10:22:58AM +0300, Eli Turkel wrote:
: On a slightly different topic there is an article in the latest Journal of
: Halacha and Contemporary Society about the saying Megillah on the 14th or
: 15th of Adar...                                            There is one
: opinion that the 2000 amot are measured from the original walls of
: Jerusalem (he wasnt sure if this was from Bayit rishon - certainly not the
: Turkish wall)....

If you're going to walls at some historical point in the past, what
would be the sevara for an alternative to those at the time of kibush
haaretz under Yehoshua bin Nun?

Tir'u baTov!
-Micha