Discovery Day commemorates the discovery of the Sister Islands of Cayman Brac and Little Cayman by Christopher Columbus in 1503. The public holiday is celebrated on the third Monday in May. Colombia celebrates October 12 as "Discovery Day", coinciding with the Columbus Day celebrations of many other countries in the New World. March 6 marks the day in 1521 that Magellan's expedition dropped anchor in Umatac Bay. December 5, the date in 1492 when Christopher Columbus landed on the island of Hispaniola in what is now Môle-Saint-Nicolas, Haiti, is called Discovery Day. Today the island is shared by two countries: Haiti and
Chile in accordance with the provisions of the Convention concerning the Protection of World Cultural and Natural Heritage of 1972, ratified by Chile in 1980. These cultural sites are the Rapa Nui National Park (1995), the Churches of Chiloé (2000), the historical district of the port city of Valparaíso (2003), Humberstone and Santa Laura Saltpeter Works (2005) and the mining city Sewell (2006). In 1999 the "Cultural Heritage Day" was established as a way to honour and commemorate Chiles cultural heritage. It is an official national event celebrated in May every year. Chile Chile (; ), officially the Republic of Chile