Historical clue formulations

• Sushi consisting of thin slices of fish over rice — 2026-06-28
• Sushi variety — 2022-04-22
• Cold rice topped with wasabi and raw fish — 2021-12-22
• Ball of vinegared rice topped with raw fish — 2020-08-23
• Sushi consisting of thin slices of fish over rice — 2018-04-09