January 6 » The Catholic Monarchs Ferdinand and Isabella enter Granada at the conclusion of the Granada War.
January 16 » The first grammar of the Spanish language (Gramática de la lengua castellana) is presented to Queen Isabella I.
March 31 » Queen Isabella of Castile issues the Alhambra Decree, ordering her 150,000 Jewish and Muslim subjects to convert to Christianity or face expulsion.
April 30 » Spain gives Christopher Columbus his commission of exploration.
October 12 » Christopher Columbus's first expedition makes landfall in the Caribbean, specifically in The Bahamas.
December 5 » Christopher Columbus becomes the first European to set foot on the island of Hispaniola (now Haiti and the Dominican Republic).
March 28 » The foundation stone of Valletta, Malta's capital city, is laid by Jean Parisot de Valette, Grand Master of the Sovereign Military Order of Malta.
April 5 » Two hundred Dutch noblemen, led by Hendrick van Brederode, force themselves into the presence of Margaret of Parma and present the Petition of Compromise, denouncing the Spanish Inquisition in the Seventeen Provinces.
When copying data from this family tree, please include a reference to the origin: Marthan Klein, "Families Klein, Ree, de Breed en de Vries van Terschelling", database, Genealogy Online (https://www.genealogieonline.nl/families-klein-ree-ea/I504804.php : accessed August 9, 2025), "Wolfgang van Anhalt-Zerbst (1492-1566)".
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