Historical clue formulations

• Explorer da Gama — 2026-07-19
• ___ Núñez de Balboa, Isthmus of Panama explorer — 2025-06-06
• Brazilian soccer club named for an explorer, familiarly — 2024-09-20
• Explorer ___ da Gama — 2020-06-03
• Balboa's first name — 2014-04-12
• Explorer ___ da Gama — 2011-06-21
• Explorer ___ da Gama — 2010-10-17
• Explorer ___ da Gama — 2008-07-06
• Explorer ___ da Gama — 2004-09-14
• Explorer ___ da Gama — 2002-07-22
• Explorer ___ Núñez de Balboa — 2000-07-23
• Explorer Balboa — 1999-12-11