Related Clues:

• Memorable span
• Record held for decades?
• Reagan __
• Significant historical span
• Geological age
• Meaningful period of time
• Time of one's life?
• A coup could end it
• Ace's stat
• Dated song
• Any Elvis number
• Geology topic
• Supermarket brand ''for tough moms''
• Doo-wop __
• Period of literary style, e.g