Related Clues:

• '___ Yes!' (old political placard)
• One for the history books
• Period in history
• Elizabethan ___
• Entirely
• See 72-Down
• Christian ___
• Ballpark fig.
• Complete
• Two or more periods
• See 31-Down
• See 64-Across
• Stat. that's good when low
• Detergent brand
• Root