Question: When did the organization St. Barts became part of in 2012 start?

full_context: Document 1: Santer Commission: The Santer Commission was the European Commission in office between 23 January 1995 and 15 March 1999. The administration was led by Jacques Santer (former Prime Minister of Luxembourg).
Document 2: European Union law: The Social Chapter is a chapter of the 1997 Treaty of Amsterdam covering social policy issues in European Union law. The basis for the Social Chapter was developed in 1989 by the "social partners" representatives, namely UNICE, the employers' confederation, the European Trade Union Confederation (ETUC) and CEEP, the European Centre of Public Enterprises. A toned down version was adopted as the Social Charter at the 1989 Strasbourg European Council. The Social Charter declares 30 general principles, including on fair remuneration of employment, health and safety at work, rights of disabled and elderly, the rights of workers, on vocational training and improvements of living conditions. The Social Charter became the basis for European Community legislation on these issues in 40 pieces of legislation.
Document 3: European Union law: The Social Charter was subsequently adopted in 1989 by 11 of the then 12 member states. The UK refused to sign the Social Charter and was exempt from the legislation covering Social Charter issues unless it agreed to be bound by the legislation. The UK subsequently was the only member state to veto the Social Charter being included as the "Social Chapter" of the 1992 Maastricht Treaty - instead, an Agreement on Social Policy was added as a protocol. Again, the UK was exempt from legislation arising from the protocol, unless it agreed to be bound by it. The protocol was to become known as "Social Chapter", despite not actually being a chapter of the Maastricht Treaty. To achieve aims of the Agreement on Social Policy the European Union was to "support and complement" the policies of member states. The aims of the Agreement on Social Policy are:
Document 4: Saint Barthélemy: International investment and the wealth generated by wealthy tourists explain the high standard of living on the island. St. Barthélemy is considered a playground of the rich and famous,[citation needed] especially as a winter haven, and is known for its beaches, gourmet dining and high-end designers. Most of the food is imported by airplane or boat from the US or France. Tourism attracts about 200,000 visitors every year. As a result, there is a boom in house building activity catering to the tourists and also to the permanent residents of the island, with prices as high as €61,200,000 for a beachfront villa.
Document 5: European Union law: The principal Treaties that form the European Union began with common rules for coal and steel, and then atomic energy, but more complete and formal institutions were established through the Treaty of Rome 1957 and the Maastricht Treaty 1992 (now: TFEU). Minor amendments were made during the 1960s and 1970s. Major amending treaties were signed to complete the development of a single, internal market in the Single European Act 1986, to further the development of a more social Europe in the Treaty of Amsterdam 1997, and to make minor amendments to the relative power of member states in the EU institutions in the Treaty of Nice 2001 and the Treaty of Lisbon 2007. Since its establishment, more member states have joined through a series of accession treaties, from the UK, Ireland, Denmark and Norway in 1972 (though Norway did not end up joining), Greece in 1979, Spain and Portugal 1985, Austria, Finland, Norway and Sweden in 1994 (though again Norway failed to join, because of lack of support in the referendum), the Czech Republic, Cyprus, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia and Slovenia in 2004, Romania and Bulgaria in 2007 and Croatia in 2013. Greenland signed a Treaty in 1985 giving it a special status.
Document 6: Jonathan-Simon Sellem: In January 2014, he was elected as one of the 11 representatives of the French in Israel and in Palestinian territories, in the advisory "". In the election organized by the Embassy of France, more than 60,000 voters were asked to vote (representing 150,000 French living in Israel and in Palestinian territories). For this election, Jonathan-Simon Sellem was the head of the UMP-UDI list (right, center-right), which gained 1528 votes, 50.38%.
Document 7: Saint Barthélemy: Saint-Barthélemy (French: Saint-Barthélemy, French pronunciation: ​[sɛ̃baʁtelemi]), officially the Territorial collectivity of Saint-Barthélemy (French: Collectivité territoriale de Saint-Barthélemy), is an overseas collectivity of France. Often abbreviated to Saint-Barth in French, or St. Barts or St. Barths in English, the indigenous people called the island Ouanalao. St. Barthélemy lies about 35 kilometres (22 mi) southeast of St. Martin and north of St. Kitts. Puerto Rico is 240 kilometres (150 mi) to the west in the Greater Antilles.
Document 8: History of the European Union: On 1 November 1993, under the third Delors Commission, the Maastricht Treaty became effective, creating the European Union with its pillar system, including foreign and home affairs alongside the European Community. The 1994 European elections were held resulting in the Socialist group maintaining their position as the largest party in Parliament. The Council proposed Jacques Santer as Commission President but he was seen as a second choice candidate, undermining his position. Parliament narrowly approved Santer but his commission gained greater support, being approved by 416 votes to 103. Santer had to use his new powers under Maastricht to flex greater control over his choice of Commissioners. They took office on 23 January 1995.
Document 9: Jules Maaten: Jules Maaten was elected as a member of the European Parliament in the European Elections of 10 June 1999, on the list of the Dutch Liberal Party VVD and he joined the Liberal Group in the Parliament. He sat on the Committee for the Environment, Public Health and Consumer Affairs and, from 2002, on the Foreign Affairs Committee. During the first part of the legislature he sat on Economic and Monetary Committee. He has done legislative work on such issues as the Tobacco Directive, the introduction of the euro currency, water quality, AIDS, completion of the EU's internal market in alcohol products, international banking fees, the European Central Bank, safety of children's toys, car exhaust emissions, food safety, and genetically modified organisms and human genetics, homeopathic and pharmaceutical products, Dutch prisoners in Thailand.
Document 10: Saint Barthélemy: Saint Barthélemy was for many years a French commune forming part of Guadeloupe, which is an overseas region and department of France. Through a referendum in 2003, island residents sought separation from the administrative jurisdiction of Guadeloupe, and it was finally accomplished in 2007. The island of Saint Barthélemy became an Overseas Collectivity (COM). A governing territorial council was elected for its administration, which has provided the island with a certain degree of autonomy. The Hotel de Ville, which was the town hall, is now the Hotel de la Collectivité. A senator represents the island in Paris. St. Barthélemy has retained its free port status.
Document 11: Saint Barthélemy: On 7 February 2007, the French Parliament passed a bill granting COM status to both St. Barthélemy and (separately) to the neighbouring Saint Martin. The new status took effect on 15 July 2007, when the first territorial council was elected, according to the law. The island has a president (elected every five years), a unicameral Territorial Council of nineteen members who are elected by popular vote and serve for five-year terms, and an executive council of seven members. Elections to these councils were first held on 1 July 2007 with the last election in March 2012.
Document 12: Treaties of the European Union: Two core functional treaties, the Treaty on European Union (originally signed in Maastricht in 1992) and the Treaty on the Functioning of the European Union (originally signed in Rome in 1957 as the Treaty establishing the European Economic Community), lay out how the EU operates, and there are a number of satellite treaties which are interconnected with them. The treaties have been repeatedly amended by other treaties over the 65 years since they were first signed. The consolidated version of the two core treaties is regularly published by the European Commission.
Document 13: Saint Barthélemy: Agricultural production on the island is difficult given the dry and rocky terrain, but the early settlers managed to produce vegetables, cotton, pineapples, salt, bananas and also fishing. Sweet potato is also grown in patches. The islanders developed commerce through the port of Gustavia. Duty-free port attractions, retail trade, high-end tourism (mostly from North America) and its luxury hotels and villas have increased the island's prosperity, reflected in the high standard of living of its citizens.
Document 14: Senate (France): Senate Sénat Type Type Upper house of the French Parliament History Founded 1799 Leadership Président Gérard Larcher Structure Seats 348 Political groups CRCE (15) SOC (78) RDSE (21) REM (21) LIRT (11) UC (49) LR (145) RASNAG (8) Elections Voting system Indirect election Last election 24 September 2017 Next election September 2020 Meeting place Luxembourg Palace, Paris Website www.senat.fr
Document 15: Saint Barthélemy: One senator represents the island in the French Senate. The first election was held on 21 September 2008 with the last election in September 2014. St. Barthélemy became an overseas territory of the European Union on 1 January 2012, but the island's inhabitants remain French citizens with EU status holding EU passports. France is responsible for the defence of the island and as such has stationed a security force on the island comprising six policemen and thirteen gendarmes (posted on two-year term).
ground_truth: 1 November 1993
sub_queries: What organization did St. Barts become a part of in 2012? Answer: the European Union
when did the European Union start and for what main reason Answer: 1 November 1993