Historical clue formulations

• Mild lettuce variety — 2025-03-10
• Kind of lettuce — 2025-02-12
• Salad base choice — 2022-08-13
• Lettuce wrap lettuce — 2022-05-26
• Lettuce often used in lettuce wraps — 2022-01-26
• Lettuce type — 2021-07-06
• Tender kind of lettuce — 2020-05-20
• Lettuce variety — 2010-01-15
• Lettuce variety — 2008-05-28
• Lettuce variety — 2003-07-15
• Lettuce variety — 2001-06-07
• Kind of lettuce — 2000-05-11
• Kind of lettuce — 1999-10-11