Christopher Columbus astronomy, and history. He formulated a plan to seek a western sea passage to the East Indies, hoping to profit from the lucrative spice trade. After years of lobbying, the Catholic Monarchs of Spain agreed to sponsor a journey west, in the name of the Crown of Castile. Columbus left Spain in August 1492 with three ships, and after a stopover in the Canary Islands made landfall in the Americas on 12 October (now celebrated as Columbus Day). His landing place was an island in the Bahamas, known by its native inhabitants as Guanahani; its exact location is uncertain. Columbus
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