Discovery Day is the name of several holidays commemorating the discovery of land, gold, and other significant national discoveries.

In the Bahamas Discovery Day is a public holiday on October 12, celebrating the arrival of Christoper Columbus in the New World in 1492. It coincides with the Columbus Day celebrations of many other countries in the Americas. Columbus's initial landfall was on the now-unknown island of Guanahani in the Bahamas in 1492.If Discovery Day falls on a Saturday or a Sunday, it is observed the following Monday. Schools, Banks, Public Offices and most shops are closed on Discovery Day.

The Feast of Saints Peter and Paul, or the Solemnity of Saints Peter and Paul, is a liturgical feast in honour of the martyrdom in Rome of the apostles Saint Peter and Saint Paul, which is observed on 29 June. The celebration is of ancient origin, the date selected being the anniversary either of their death or of the translation of their relics.^[1]

In the Roman Catholic calendar of saints, it is celebrated as a solemnity. In the General Roman Calendar of 1962, it is a first-class feast. It is a holy day of obligation in the universal Church.

Ratcatcher's Day, Rat-catcher's Day or Rat Catcher's Day is celebrated on 26 June or 22 July, commemorating the myth of the Pied Piper of Hamelin. The town of Hamelin in Germany uses the June date.^[1] The confusion of dates is because the Brothers Grimm cite 26 June 1284 as the date the Pied Piper led the children out of the town, while the poem by Robert Browning gives it as 22 July 1376. It is a holiday remembering rat-catchers, similar to Secretary's Day.^[2][3]