This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.

Passage: Christopher Columbus discovered the Americas for the Kingdom of Castile and Leon in 1492. By 1580 this had unified with neighbouring kingdoms to form one Spanish kingdom. Private adventurers thereafter entered into contracts with the Spanish Crown to conquer the newly discovered lands in return for tax revenues and the power to rule. In the first decades after the discovery, the Spanish colonised the Caribbean and established a centre of operations on the island of Cuba. They heard rumours of the rich empire of the Aztecs on the mainland to the west and, in 1519, Hernan Cortes set sail with eleven ships to explore the Mexican coast. By August 1521 the Aztec capital of Tenochtitlan had fallen to the Spanish. Within three years of the fall of Tenochtitlan the Spanish had conquered a large part of Mexico, extending as far south as the Isthmus of Tehuantepec. The newly conquered territory became New Spain, headed by a viceroy who answered to the Spanish Crown via the Council of the Indies. Cortes despatched Pedro de Alvarado with an army to conquer the Mesoamerican kingdoms of the Guatemalan Sierra Madre and neighbouring Pacific plain; the military phase of the establishment of the Spanish colony of Guatemala lasted from 1524 to 1541. The Captaincy General of Guatemala had its capital at Santiago de los Caballeros de Guatemala and covered a wide territory that also included the Mexican state of Chiapas as well as El Salvador, Honduras and Costa Rica. The Spanish imposed colonial rule over Yucatan between 1527 and 1546, and over Verapaz from the 16th to the 17th centuries, leaving the area between- essentially Peten and much of Belize- independent long after surrounding peoples had been subjugated.
Question: How many years were there between the discovery of the Americas and the formation of one Spanish kingdom?
Answer type: Number
88.