Related Clues:

• Many a millennia
• Notable period
• Pitcher's stat.
• Clock watcher's wait, seemingly
• 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