Children's Day about children's right on 20 November which is the declared Universal Children’s Day by United Nation. After this movement gained a lot of attraction, Bangladesh started celebrating, Children's Day on 17 March on the birthday of the Father of the Nation Bangabandhu Sheikh Mujibur Rahman. In Bosnia & Herzegovina, Children's Day was established as a holiday in 1993. In Brazil, Children's Day (In Portuguese: Dia das Crianças) is celebrated on 12 October, coinciding with Our Lady of Aparecida's day, the country's Patron Saint holiday. It is also the day of the discovery of America (Columbus Day), in reference to the
Christopher Columbus in Chicago, 1893, commemorated the 400th anniversary of the landing of Christopher Columbus in the Americas. Over 27 million people attended the exposition during its six-month duration. The United States Postal Service participated in the celebration issuing the first US "commemorative postage stamps, a series of 16 postage issues called the Columbian Issue depicting Columbus, Queen Isabella and others in the various stages of his several voyages. The issues range in value from the 1-cent to the 5-dollar denominations. Under Benjamin Harrison and his Postmaster General John Wanamaker the Columbian commemorative stamps were made available and were first issued at