in Europa, John Paul II wrote that he "fully (respected) the secular nature of (European) institutions". However, he wanted the constitution to enshrine religious rights, including acknowledging the rights of religious groups to organise freely, recognise the specific identity of each denomination and allow for a "structured dialogue" between each religious community and the European Union (EU), and extend across the EU the legal status enjoyed by religious institutions in individual member states. John Paul II said: "I wish once more to appeal to those drawing up the future European Constitutional Treaty so that it will include a reference to the religion and in particular to the Christian heritage of Europe." The pope's desire for a reference to Europe's Christian identity in the EU Constitution was supported by non-Catholic representatives of the Church of England and Eastern Orthodox Churches from Russia, Romania, and Greece. John Paul II's demand to include a reference to Europe's Christian roots in the European Constitution was supported by some non-Christians, such as Joseph Weiler, a practising Orthodox Jew and renowned constitutional lawyer, who said that the EU Constitution's lack of a reference to Christianity was not a "demonstration of neutrality" but rather "a Jacobin attitude". At the same time, John Paul II was an enthusiastic supporter of European integration; in particular, he supported his native Poland's entry into the bloc. On 19 May 2003, three weeks before a referendum was held in Poland on EU membership, the Polish pope addressed his compatriots and urged them to vote for Poland's EU membership at St. Peter's Square in Vatican City State. While some conservative, Catholic politicians in Poland opposed EU membership, John Paul II said: "I know that there are many in opposition to integration. I appreciate their concern about maintaining the cultural and religious identity of our nation. However, I must emphasise that Poland has always been an important part of Europe. Europe needs Poland. The Church in Europe needs the Poles' testimony of faith. Poland needs Europe." The Polish pope compared Poland's entry into the EU to the Union of Lublin, which was signed in 1569 and united the Kingdom of Poland and the Grand Duchy of Lithuania into one nation and created an elective monarchy. Evolution On 22 October 1996, in a speech to the Pontifical Academy of Sciences plenary session at the Vatican, John Paul II said of evolution that "this theory has