Historical clue formulations

• Some vaudeville fare — 2016-01-01
• Multi-act shows — 2009-07-08
• Some Broadway fare — 2000-12-10
• Some theatrical fare — 1998-05-09
• Song-and-dance shows — 1998-03-22
• Variety shows — 1997-04-14
• Stage shows — 1994-04-17