MARIETTA – Within an hour after the Constitution Day Festival of Georgia’s opening on Sunday, Jon Goss and his sister, Anna, had visited four parts of the “Constitution Challenge,” where they learn about a different amendment.

So far, Jon said his favorite amendment was the sixth, which guarantees a right to a speedy trial.

“It’s just good to know that I can have more freedom,” said Jon, 12.

The Sunday afternoon event at Glover Park on the Marietta Square featured live music, food and games, but also lessons that attendees can take home on the 225th anniversary of the signing of the U.S. Constitution, which actually took place on Sept. 17, 1787. Many participants dressed in costumes from the late 1700s.

Those who show that they’ve visited every amendment station were entered in a drawing for Atlanta Braves tickets, and other prizes including books written by former Ronald Reagan Attorney General Edwin Meese.

Goss’ grandmother, 72-year-old Carolyn Albright of Marietta, said she took them to the festival to help the kids learn more about the Constitution.

“I wanted them to be able to relate to it, so they will be able to talk about it and know when our rights might be in question,” Albright said.

The event was the third to be held in the Square. It was hosted by the Georgia Chapter of the Americans for Prosperity Foundation, a group that advocates for limited government. It is associated with Arlington, Va.-based Americans for Prosperity, which was founded by oil billionaires Charles and David Koch, and has been instrumental in the Tea Party movement.

“We just want to educate people about the Constitution and the amendments,” said Virginia Galloway, AFPF’s Georgia state director.

With rain in the forecast, Galloway still expected a crowd of a “couple thousand” at the event, which closed traffic to East Park Square and North Park Square on Sunday afternoon.

“It’s just such a beautiful location that’s easily found,” she said.

Mark Stephens of Aldie, Va., brought his mother to the event to see Banks and Shane, a high-energy music group. But they also enjoyed seeing the opening presentation about “Star Spangled Banner” scribe Francis Scott Key.

“We love to come out here,” Stephens said.

While she has seen numerous historic re-enactments in Virginia and Massachusetts, Stephens’s 81-year-old mother, Jean, said the ones in this area are always top notch.

“I don’t know of any place that has festivals like Cobb County,” she said. “This county has so many things going on — it’s a wonderful place to live.”