Question: In what year did Christopher Columbus sail from the archipelagic state consisting of more than 700 islands?

Context articles: Columbus Monument, Barcelona
Spanish immigration to Cuba
The Bahamas
Eleuthera
Genoa Expo '92
Christopher Columbus Museum, Columbus, WI
List of companies of the Bahamas
Christopher Columbus's journal
Out Islands
Archipelagic state

The Columbus Monument (Catalan: "Monument a Colom" , ] ; Spanish: "Monumento a Colón "or" Mirador de Colón" ) is a 60 m tall monument to Christopher Columbus at the lower end of La Rambla, Barcelona, Catalonia, Spain.
 It was constructed for the Exposición Universal de Barcelona (1888) in honor of Columbus' first voyage to the Americas.
 The monument serves as a reminder that Christopher Columbus reported to Queen Isabella I and King Ferdinand V in Barcelona after his first trip to the new continent.
Spanish immigration to Cuba began in 1492, when Christopher Columbus first landed on the island, and continues to the present day.
 The first sighting of a Spanish boat approaching the island was on 27 or 28 October 1492, probably at Bariay on the eastern point of the island.
 Columbus, on his first voyage to the Americas, sailed south from what is now The Bahamas to explore the northeast coast of Cuba and the northern coast of Hispaniola.
 Columbus discovered the island believing it to be a peninsula of the Asian mainland.
The Bahamas ( ), known officially as the Commonwealth of The Bahamas, is an archipelagic state within the Lucayan Archipelago.
 It consists of more than 700 islands, cays, and islets in the Atlantic Ocean and is located north of Cuba and Hispaniola (Haiti and the Dominican Republic); northwest of the Turks and Caicos Islands; southeast of the US state of Florida and east of the Florida Keys.
 The capital is Nassau on the island of New Providence.
 The designation of "the Bahamas" can refer either to the country or to the larger island chain that it shares with the Turks and Caicos Islands.
 As stated in the mandate/manifesto of the Royal Bahamas Defence Force, the Bahamas territory encompasses 180000 sqmi of ocean space.
Eleuthera refers both to a single island in the archipelagic state of The Commonwealth of the Bahamas and to its associated group of smaller islands.
 Eleuthera forms a part of the Great Bahama Bank.
 The island of Eleuthera incorporates the smaller Harbour Island.
 "Eleuthera" derives from the feminine Greek adjective ἐλεύθερος ("eleutheros"), meaning "free".
 Known in the 17th century as Cigateo, it lies 80 km (50 miles) east of Nassau.
 It is long and thin—180 km (110 miles) long and in places little more than 1.6 km (1.0 mile) wide.
 Its eastern side faces the Atlantic Ocean, and its western side faces the Great Bahama Bank.
 The topography of the island varies from wide rolling pink sand beaches to large outcrops of ancient coral reefs, and its population is approximately 11,000.
 The principal economy of the island is tourism.
L'Esposizione Internazionale Specializzata Genova '92 - Colombo '92 (in English "International Exhibition Genoa '92 - Colombo '92") or more informally Expo 1992, held in Genoa, Italy from May 15 to August 15, 1992.
 The theme was "Christopher Columbus, The Ship and the Sea", and the Expo was timed to celebrate the 500 years since the Discover of America by the Genoese sailor Christopher Columbus.
 Because of the theme, the expo was also known as "Colombiadi".
 It was a specialized Exhibition with 54 countries represented.
 Total visitors were 694,800.
 Although not related, the exposition ran at the same time as Seville Expo '92.
 The expo's logo was a "500" number with the Genoa's flag; the mascot was a cat dressed like Christopher Columbus called "Gatto Cristoforo"
The Christopher Columbus Museum is a history museum located in an antique store in Columbus, Wisconsin.
 It displays quality souvenir memorabilia pertaining both to the voyages and life of Christopher Columbus, and celebrations of Christopher Columbus, particularly the Chicago's 1893 World's Columbian Exposition (World's Fair).
 Educational exhibits include: library, statues, lithographs, paper, glassware, china, porcelain, tapestries, metals, silk ribbons, cloth, bronze and many types of souvenirs.
The Bahamas is an archipelagic state of the Lucayan Archipelago consisting of more than 700 islands, cays, and islets in the Atlantic Ocean; north of Cuba and Hispaniola (Haiti and the Dominican Republic); northwest of the Turks and Caicos Islands; southeast of the US state of Florida and east of the Florida Keys.
 Its capital is Nassau on the island of New Providence.
 The designation of "The Bahamas" can refer to either the country or the larger island chain that it shares with the Turks and Caicos Islands.
 As stated in the mandate/manifesto of the Royal Bahamas Defence Force, the Bahamas territory encompasses 180000 sqmi of ocean space.
Christopher Columbus's journal is a diary and logbook written by Christopher Columbus about his first voyage.
 The journal covers events from 3 August 1492, when Columbus departed from Palos de la Frontera, to 6 November of the same year.
 Columbus is known by several contemporary references to have kept a journal of the voyage as a daily record of events and as an evidence for the Catholic Monarchs.
 Upon his return to Spain in the spring of 1493 Columbus presented the journal to Isabella I of Castile.
 She had it copied, retained the original, and gave the copy to Columbus before his second voyage.
 The whereabouts of the original Spanish text has not been known since 1504.
 Copies based on an abstract from the journal have been made, most notably by Bartolomé de las Casas.
The Out Islands are the islands that make up the Bahamas with the exception of New Providence Island and Grand Bahama Island.
 There are more than 700 islands in the archipelago that make up The Bahamas, but only 14 of the Out Islands are inhabited.
 These include the Abacos, Acklins and Crooked Islands, Andros, the Berry Islands, Bimini, Cat Island, Eleuthera, Harbour Island, the Exumas, Inagua, Long Island, Mayaguana, and San Salvador.
An archipelagic state is any internationally recognized state or country that comprises a series of islands that form an archipelago.
 The term is defined by the United Nations Convention on the Law of the Sea in order to define what borders such states should be allowed to claim.