Historical clue formulations

• Purple avenue in Monopoly — 2022-09-26
• Second-least valuable avenue in Monopoly after Mediterranean — 2021-02-02
• Second Monopoly avenue — 2020-01-22
• Like Latvia or Lithuania — 2014-03-18
• Like Old Prussian — 2009-04-24
• North sea — 2006-09-08
• Purple Monopoly avenue — 2005-06-13
• Monopoly property — 2005-03-19
• Cheap rental in Monopoly — 2004-11-05
• $60 property in Monopoly — 2004-09-18
• Like Latvia or Lithuania — 2001-08-08
• Easy Monopoly purchase — 1997-12-06