What is associated with: 1931 plug in the lightning rod its creation time?

What is associated with: 1931 completion of the bagnell dam created a beautiful lake in these missouri mountains? What is associated with: 1931 everyone wang lung tonight the buck stops here? What is associated with: 1931 its alive its alive? What is associated with: 1931 listen to them children of the night what music they make? What is associated with: 1931 second rhapsody? What is associated with: 1931 sidewalks of? What is associated with: 1931 the persistence of memory? What is associated with: 1931 this 102 story building is officially dedicated in new york city?