Costa Rica commemorates Guanacaste Day every year on July 25, marking the annexation of Nicoya from Nicaragua in 1824. As the festivities unfold, let’s revisit the historical significance of this national holiday. Origin of Nicoya The name “Nicoya” originates from the Aztec Nahua language, named after the cacique Nicoa. The Nahua people migrated from modern-day Mexico to Guanacaste. Historical Background …