Historical clue formulations

• "Buenos ___" — 2021-09-27
• "Buenos ___" — 2020-08-10
• "Buenos ___" — 2019-10-16
• Mayo parts? — 2018-02-28
• Lunes y martes — 2016-08-04
• "Buenos ___!" — 2016-05-10
• Portuguese explorer Bartolomeu who found a sailing route around Africa — 2015-04-18
• "Buenos ___!" — 2009-09-09
• His 1488 voyage opened the road to India — 2006-07-22
• Los ___ de los Muertos (Mexican holiday) — 2004-02-11
• Portuguese explorer Bartolomeu — 2003-12-24
• Calendario parts — 2003-11-15
• There are seven in a semana — 2002-12-03
• "Buenos ___" — 2000-03-09
• "Buenos ___" — 1999-12-17
• "Buenos ___" — 1999-09-07
• Cape of Good Hope discoverer — 1998-06-19
• Domingo y lunes — 1997-06-22
• "Buenos ___" — 1997-05-03
• "Buenos _____" — 1994-08-13
• "Buenos ___" — 1994-07-31