Dungeons & Dragons and others inducted into Toy Hall of Fame

The Strong National Museum of Play announced their 2016 inductees to the National Toy Hall of Fame. This year's class includes Dungeons & Dragons, Fisher-Price Little People and the swing.

Documentation of the swing can be traced back as far as "ancient cave drawings in Europe, carved figures from Crete, and ceramic vases from Greece," according to the hall of fame.

"Though the equipment has evolved with the centuries, the pleasure children and adults find in swinging has hardly changed at all," curator Patricia Hogan told ABC News.

Fisher-Price Little People have been a favorite of children since they were introduced in 1959. According to the hall of fame, more than two billion Little People have been sold.

Fantasy role-playing game Dungeons & Dragons was first published in 1974. It was created by Gary Gygax and Dave Arneson.

"The core of D&D is storytelling," according the game's website. "You and your friends tell a story together, guiding your heroes through quests for treasure, battles with deadly foes, daring rescues, courtly intrigue, and much more."

Since the first class in 1998, 59 toys have been inducted into the hall of fame. Toys can be nominated by the public and are chosen based on the criteria of icon-status, longevity, discovery and innovation.