This 1980 pastiche of period vaudeville routines, popular songs, and excerpts from speeches provides an entertaining history lesson on America between the Civil War and the Roaring 20s. Five characters represent the era’s archetypes: three are based on historical figures Teddy Roosevelt, socialist Emma Goldman, and Ziegfeld Follies star Anna Held while two are more generic, an immigrant who suggests Charlie Chaplin and an African-American domestic. The ensemble members blend superbly, accompanied by a lively quintet in a gazebo under a starry sky playing sentimental standards and Scott Joplin rags. But this uniformly pleasant production cries out for grit–a more outraged Goldman, a more seductive Held, and less elegance from the supposedly downtrodden immigrant and maid. There’s no shortage of tragedy and suffering in the script, nor was there at the time. Allowing it to come through would have brought the show’s exuberance into higher relief. Through 7/17: Wed 8 PM, Thu 2 and 8 PM, Fri 8:30 PM, Sat 5:30 and 9 PM, Sun 2:30 and 7 PM. Drury Lane Oakbrook, Roosevelt and Butterfield, Oakbrook Terrace, 630-530-0111. $22-$26; dinner packages available.