Passage: Denmark was a founding member of European Free Trade Association (EFTA). During the 1960s, the EFTA countries were often referred to as the Outer Seven, as opposed to the Inner Six of what was then the European Economic Community (EEC). In 1973, along with Britain and Ireland, Denmark joined the European Economic Community (now the European Union) after a public referendum. The Maastricht Treaty, which involved further European integration, was rejected by the Danish people in 1992; it was only accepted after a second referendum in 1993, which provided for four opt-outs from policies. The Danes rejected the euro as the national currency in a referendum in 2000. Greenland gained home rule in 1979 and was awarded self-determination in 2009. Neither the Faroe Islands nor Greenland are members of the European Union, the Faroese having declined membership of the EEC in 1973 and Greenland in 1986, in both cases because of fisheries policies.

Question: The danes rejected which policy originally?
The Maastricht Treaty