Historical clue formulations

• Presented — 2024-10-30
• Demonstrated — 2024-04-15
• Exhibited — 2022-04-13
• Displayed — 2021-11-02
• Demonstrated — 2020-07-07
• Proven as accurate — 2017-03-02
• On display — 2010-03-07
• Exhibited — 1999-12-05