Historical clue formulations

• Smoothed over, in a way — 2026-02-14
• Like many a lot — 2016-12-18
• Smoothed over — 2010-09-19
• Hard-top — 2008-01-19
• No longer dirt — 2006-12-19
• Put asphalt on — 2005-07-19
• Unlike a dirt road — 2004-06-15
• Unlike dirt roads — 2002-10-01
• Easy to drive on — 2001-03-02
• Surfaced, as roads — 1999-11-24
• Like most roads — 1999-11-17
• No longer dirt — 1997-04-06
• Smooth, in a way — 1995-10-12