The waltz is a smooth, progressive ballroom and folk dance in time, performed primarily in closed position. History There are several references to a sliding or gliding dance—a waltz—from the 16th century, including the representations of the printer H.S. Beheim. The French philosopher Montaigne wrote of a dance he saw in 1580 in Augsburg, where the dancers held each other so closely that their faces touched. Kunz Haas (of approximately the same period) wrote, "Now they are dancing the godless Weller or Spinner." "The vigorous peasant dancer, following an instinctive knowledge of t...

The fourth wall is the imaginary "wall" at the front of the stage in a traditional three-walled box set in a proscenium theatre, through which the audience sees the action in the world of the play. The idea of the fourth wall was made explicit by philosopher and critic Denis Diderot and spread in 19th-century theatre with the advent of theatrical realism, which extended the idea to the imaginary boundary between any fictional work and its audience. Speaking directly to or otherwise acknowledging the audience through a camera in a film or television program, or through this imaginary wal...