Related Clues:

• 1984, e.g.
• Get long in the tooth
• Junior or senior, e.g.
• 86 is a high one
• Subject of a guessing game
• Season
• Part of Y2K
• Orbital period
• Biographical datum
• Insurance application datum
• Survey info
• Revolutionary period?
• Revolution time
• Archaeologist's reckoning
• Form datum, often