Question: What year was the Mad Men actor who played Betty's ex-husband on the show born?

Related documents: [0]  [DOC] "Public Relations" is the season premiere of the fourth season of the American television drama series "Mad Men", and the 40th overall episode of the series. It was written by series creator and executive producer Matthew Weiner, and directed by Phil Abraham. It originally aired on AMC in the United States on July 25, 2010. The episode takes place in November 1964, as the advertisement agency Sterling Cooper Draper Pryce has just started up, and Don Draper (Jon Hamm) is struggling with his divorce. The agency partners are concerned about the narrow breadth of their client base, which is not helped by Don coming across as less than sympathetic in an interview with a trade magazine. Peggy Olson (Elisabeth Moss) attempts a viral marketing stunt to bring back a disgruntled client, with unexpected repercussions. Meanwhile, Don's ex-wife Betty (January Jones) is struggling to fit in with her new family, and Don encounters problems in his romantic life. [END] 
[1]  [DOC] Jonathan Daniel Hamm (born March 10, 1971) is an American actor, director, and television producer best known for playing advertising executive Don Draper for the AMC television drama series, "Mad Men" (2007–2015). [END]  
Answer: 1971
1971