ABOUT TIME, TOO. Lionel trains are now in the National Toy Hall of Fame, who appear to be engaging in survival analysis.

Longevity is a key criterion for getting into the all-star lineup. Each toy must not only be widely recognized and foster learning, creativity or discovery through play, but endure in popularity over multiple generations.

For the record, Lionel trains have been in production more or less continuously since 1904. The Hula Hoop and the Frisbee date to the 1950s, as does Mr. Potato Head.