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
Columbus Day organization, the Knights of Columbus. Some anti-Catholics, notably including the Ku Klux Klan and the Women of the Ku Klux Klan, opposed celebrations of Columbus or monuments about him because they thought that it increased Catholic influence in the United States, which was largely a Protestant country. By far the more common opposition today, decrying both Columbus' and other Europeans' actions against the indigenous populations of the Americas, did not gain much traction until the latter half of the 20th century. This opposition was led by Native Americans and expanded upon by left-wing political parties, though it has become more