Historical clue formulations

• Century 21 rival — 2024-10-07
• Competitor of Century 21 — 2020-02-15
• Century 21 rival — 2017-05-15
• Coldwell Banker competitor — 2015-10-31
• Big name in real estate — 2015-06-11
• Very big name in home-selling — 2006-10-05