Historical clue formulations

• Mario's video game brother — 2026-08-11
• Brother of this puzzle's subject — 2026-07-26
• One of the Super Mario brothers — 2026-06-29
• Green-clad brother of 11-Down — 2025-08-28
• Video game brother — 2025-06-29
• Video game character in a green hat — 2025-04-15
• Classic video game character portrayed by John Leguizamo (1993) — 2023-12-16
• Mario's brother — 2023-11-20
• Character who can be played in every installment of 26-Down — 2021-06-19
• Lover of Giorgetta in Puccini's "Il Tabarro" — 2020-12-24
• Video game character with an "L" on his hat — 2020-07-15
• Nintendo character with a green cap — 2020-03-29
• Nintendo brother — 2018-05-08
• Mario's video game brother — 2016-04-04
• Green-hatted Nintendo character — 2015-11-13
• Mario's brother, in gaming — 2015-05-24
• One of the Mario Brothers — 2011-10-31
• Mario's video game brother — 2011-01-17
• Brother of Nintendo's Mario — 2009-08-11
• Playwright Pirandello — 2009-06-12
• Mario Bros. brother — 2008-12-05
• Mario's brother in Nintendo's Mario Bros. — 2008-10-20
• Composer Boccherini — 2007-12-08
• Brother of Nintendo's Mario — 2007-01-12
• Composer Boccherini — 2006-11-04
• Dramatist Pirandello who wrote "Six Characters in Search of an Author" — 2006-06-04
• Italian dramatist Pirandello — 2002-04-02
• Playwright Pirandello — 1999-10-03
• Author Pirandello — 1999-05-08
• Composer Cherubini — 1998-03-14
• One of Nintendo's Mario Brothers — 1997-01-19
• Literature Nobelist Pirandello — 1996-12-01
• One of the Mario Brothers — 1996-01-10
• Playwright Pirandello — 1995-07-04