Historical clue formulations

• To be, in Barcelona — 2026-09-07
• To be, in Spanish — 2024-03-10
• Spanish 101 infinitive — 2023-05-31
• Spanish 101 verb — 2022-09-25
• Spanish 101 verb — 2021-09-28
• Spanish 101 verb — 2007-09-08
• To be, in Toledo — 2004-05-30
• Spanish 101 verb — 2001-02-22
• To be, in Bogota — 1994-05-22