Related Clues:

• Tom Seaver's 2.86, e.g.
• Swing __
• Momentous time
• Failed 27th Amendment
• It's full of periods
• American Depression, e.g.
• Memorable period of time
• Legislation recently re-introduced by Edward Kennedy and Carolyn Maloney: Abbr.
• Important period of history
• Period to remember
• Pitcher's number
• Ballpark figure, for short
• ''Common'' chapter of history
• BCE part
• It's a ballpark figure