Related Clues:

• Opinionated work
• Age
• '___ Yes!' (old political placard)
• Calendar page
• One for the history books
• Period in history
• Lamb output
• Elizabethan ___
• Lamb product
• Christian ___
• Ballpark fig.
• Two or more periods
• See 31-Down
• See 64-Across
• Stat. that's good when low