Question: Air Nostrum, Líneas Aéreas del Mediterráneo, S.A., also known as Iberia Regional, is a regional airline based in Valencia, Spain, Iberia Regional franchise is a regional partner of Iberia and an affiliate member of Oneworld, an airline alliance, founded on which date?
Context: Iberia ( ), legally incorporated as "Iberia, Líneas Aéreas de España, S.A. Operadora, Sociedad Unipersonal", is the flag carrier airline of Spain founded in 1927.  Based in Madrid, it operates an international network of services from its main base of Madrid-Barajas Airport. Envoy Air Inc. (formerly American Eagle Airlines) is an air carrier headquartered in Irving, Texas, in the Dallas-Fort Worth metroplex.  It is a wholly owned subsidiary of American Airlines Group that, along with several carriers outside the group, feeds the American Airlines route network under the American Eagle brand.  With over 1,800 flights a day, serving 159 cities across the United States, Canada, Mexico and the Caribbean, Envoy is considered to be the world's largest regional airline system.  Envoy is an affiliate member of the Oneworld airline alliance. Air Nostrum, Líneas Aéreas del Mediterráneo, S.A., also known as Iberia Regional, is a regional airline based in Valencia, Spain.  Air Nostrum is an independent carrier which operates as a franchisee of Iberia Airlines and Binter Canarias.  Iberia Regional franchise is a regional partner of Iberia and an affiliate member of the Oneworld airline alliance.  Air Nostrum operates 91 domestic and international routes to 51 destinations, and charter flights.  Its main base is Valencia Airport, with hubs at Barcelona Airport and Madrid-Barajas Airport. Hong Kong Dragon Airlines Ltd (Chinese: 港龍航空公司), operating brand as Cathay Dragon (Chinese: 國泰港龍航空) and previously as Dragonair, is a Hong Kong-based international regional airline, with its corporate headquarters, Cathay Dragon House, and main hub at Hong Kong International Airport.  As of 30 October 2013, the airline operates a scheduled passenger network to 44 destinations in 13 countries and territories across Asia.  Additionally, the airline has 3 codeshares on routes which are served by partner airlines.  It has an all Airbus fleet of 41 aircraft, consisting of A320s, A321s and A330s. Cathay Dragon is a wholly owned subsidiary of Hong Kong's flag carrier, Cathay Pacific, and is an affiliate member of the Oneworld airline alliance.  The airline was founded on May 24, 1985 by Chao Kuang Piu, the airline's present honorary chairman.  Its maiden flight departed Hong Kong for Kota Kinabalu, Malaysia after being granted an air operator's certificate (AOC) by the Hong Kong Government in July 1985.  In 2010, Dragonair, together with its parent, Cathay Pacific, operated over 138,000 flights, carried nearly 27 million passengers and over 1.80 billion kg of cargo and mail. Oneworld (marketed as oneworld; CRS: *O) is an airline alliance founded on 1 February 1999.  The alliance's stated objective is to be the first-choice airline alliance for the world's frequent international travelers.  Its central alliance office is currently based in New York City in the United States.  Its member airlines include Air Berlin, American Airlines, British Airways, Cathay Pacific, Finnair, Iberia, Japan Airlines, LATAM Airlines, Malaysia Airlines, Qantas, Qatar Airways, Royal Jordanian, S7 Airlines and SriLankan Airlines, plus some 21 affiliated airlines.  As of August 2016, Oneworld is the third largest global alliance in terms of passengers with more than 557.4 million passengers carried, behind Star Alliance (689.98 M) and SkyTeam (665.4 M).  Its slogan is "An alliance of the world's leading airlines working as one." Air Europa Líneas Aéreas, S.A.U. is an airline in Spain, the third largest after Iberia and Vueling.  The airline is headquartered in the "Polígono Son Noguera" in the "Centro Empresarial Globalia" in Llucmajor, Majorca, Spain.  The airline is 100% owned by Globalia, a travel and tourism company managed by Juan José Hidalgo.  Since September 2007 the airline has been a member of the SkyTeam alliance. Iberia Líneas Aéreas de España, S.A. ("Iberia Airlines of Spain" in English), usually shortened to Iberia, is the largest airline of Spain, based in Madrid. LADE - Líneas Aéreas del Estado (English: State Air Lines ) is an airline based in Comodoro Rivadavia, Argentina.  It is a state owned airline operated by the Argentine Air Force and providing domestic scheduled services mainly in Patagonia. As of April 2017, Iberia flies to 26 domestic and 63 international destinations across Africa, the Americas, Asia and Europe.  This list does not include irregular charters and destinations served by Air Nostrum operating as "Iberia Regional" or Iberia Express. Líneas Aéreas Privadas Argentinas (English: "Private Argentine Air Lines" ), more commonly known by the acronym LAPA, was an airline based in Buenos Aires, Argentina.  At its heyday, the carrier operated international services to the United States and Uruguay, as well as an extensive domestic network within Argentina.  Additionally, the company also operated charter services.  Domestic and regional flights were operated from downtown's Aeroparque Jorge Newbery, whereas an international service to Atlanta was operated from Ministro Pistarini International Airport.  LAPA was the first carrier to break a monopolistic market controlled by Aerolíneas Argentinas and its sister company Austral Líneas Aéreas, offering competitive prices.  It ceased operations in April 2003.
Answer: 1 February 1999