Question:  "Bart Carny" is the twelfth episode from a season of "The Simpson" that began on what date?

Related documents: [0]  [DOC] "Bart Carny" is the twelfth episode of "The Simpsons"<nowiki>'</nowiki> ninth season. It originally aired on the Fox network in the United States on January 11, 1998. Homer and Bart start working at a carnival and befriend a father and son duo named Cooder and Spud. It was written by John Swartzwelder, directed by Mark Kirkland and guest stars Jim Varney as Cooder the carny. The episode contains several cultural references and received a generally mixed critical reception. [END] 
[1]  [DOC] "The Simpsons"' ninth season originally aired on the Fox network between September 1997 and May 1998, beginning on Sunday, September 21, 1997, with "The City of New York vs. Homer Simpson". The showrunner for the ninth production season was Mike Scully. The aired season contained three episodes which were hold-over episodes from season eight, which Bill Oakley and Josh Weinstein ran. It also contained two episodes which were run by David Mirkin, and another two hold-over episodes which were run by Al Jean and Mike Reiss. [END]  
Answer: September 21, 1997
September 21, 1997