The g'mara (M'gila 12a) says that the drinking at Achashverosh's party's being described as "no forcing" means that everyone was given wine from his own country (so he'd be accustomed to it, according to Rashi). But this quote is from a description that seems to be of the second party, to which seemingly only Shushan people were invited. So everyone had the same country. What gives?
I can think of two possible answers, and wonder if anyone has a source or evidence for either of them, or for another:
- The party is described as being for those "found in Shushan", which includes many non-locals, including, for example, everyone who was at the first party also.
- The description of the party is actually meant to apply to both even though it seems to apply only to the second.
Update: Jake has suggested, in a comment on this question, another possibility:
Perhaps many people who lived in Shushan originated in other countries.
(Indeed, we know Mord'chay did.)