Related Clues:

• Endless years
• A lo-o-ong time
• Baseball card stat
• Big name in real estate
• Two or more eras
• Old NOW cause
• Koufax's was 2.76
• Edwardian or Victorian
• Significant stretch
• Very long stretch
• Geologist's measure
• Hoped-for low number: Abbr.
• Memorable period
• Time on end
• Many, many moons