In case you forgot, the first episode of Mad Men Season 4 is set in 1964. And while the series didn’t linger in that year for long, plenty transpired for the few episodes it did: Don went to California, Lee Garner Jr. showed up for the SCDP Christmas party, and Sally reconnected with Glen Bishop. A lot happened outside the ad agency’s offices too that year. Which begs the question: How much do you know about the cultural milestones of 1964? Do you know where the World’s Fair was held or what TV sitcom ranked as the most popular that year? (And no, it wasn’t Bewitched!) Test your knowledge of all things 1964.