Historical clue formulations

• Ecuadorean coastal province known for its gold — 2018-04-29
• Ecuadorean province named for its gold production — 2014-06-27
• Ecuador's southernmost coastal province — 2007-10-27
• What Spanish athletes go for at the Olympics — 2005-03-11
• The gold of the conquistadors — 1996-11-03
• Gold-mining province of Ecuador — 1996-06-22