Historical clue formulations

• Lengua with a tilde — 2023-04-21
• Language akin to portugués — 2019-06-28
• [See notepad] — 2019-02-06
• "Aquí se habla ___" — 2018-07-10
• Lengua with the word "lengua" — 2017-09-01
• Wikipedia option — 2016-01-09
• Cousin of catalán — 2015-06-16
• Univision interviews are conducted in it — 2012-05-23
• Catalán relative — 2010-08-06
• Mexicans do business in it — 2005-07-09
• What un crucigrama is in — 2003-09-13
• Talk of Toledo — 2002-10-06
• Some signs are posted in it — 2001-09-26
• Plácido Domingo sings in it — 1999-05-05
• Language of 350 million — 1997-06-20