The earliest history museums had little actual history to draw on, and instead padded exhibits with wildly speculative displays about how dinosaurs would be elected to Congress by the year 2000. See how far we've come with today's Groupon to the Cannon Ball Military Follies Revue at Soldiers & Sailors Memorial Hall & Museum on Sunday, October 16, at 3 p.m. Choose between the following options:

• For $18, you get one general-admission ticket (a $35 value).
• For $35, you get two general-admission tickets (a $70 value).

Seating for the event will be first come, first served, excluding the front section. This Groupon is not valid for the show's afterparty.

The Cannon Ball Military Follies Revue, the grand finale to the museum's yearlong 100th anniversary festivities, celebrates America's military and veterans with a rousing afternoon of live music, stage productions, and award presentations. Military-themed acts of stage and screen provide patriotic revelry, and local performing-arts organizations, including choirs, dance ensembles, and the University of Pittsburgh theater group, beguile guests with stunning performances. Tap toes and head-bang powdered wigs loose to the sonic stylings of rocker Joe Grushecky of The Houserockers, Bill Deasy of Shiloh, and band members of The Clarks. Complimentary parking for cars and red, white, and blue penny-farthings is available in the UPMC Bigelow lot on a first-come, first-served basis. Attendees are encouraged to wear business-casual attire.