Historical clue formulations

• Communicated visually, in a way — 2023-04-07
• Used an unspoken language — 2022-11-13
• Like some memorabilia that usually costs extra — 2020-09-01
• Joined a petition — 2020-08-16
• Like finished contracts — 2004-01-19
• Communicated like Marlee Matlin — 2000-10-04