Question: When was the party Trudeau joined formed?

full_context: Document 1: Joyce Fairbairn: Fairbairn worked as a journalist in the Parliamentary Press Gallery in Ottawa before being hired as a legislative assistant to Prime Minister Pierre Trudeau in 1970. In 1981, she became Communications Coordinator in the Prime Minister's Office. On June 29, 1984, just prior to leaving office, Trudeau recommended her for appointment as a Liberal senator for Alberta, her home province.
Document 2: William Young (Nova Scotia politician): Born in Falkirk, the son of John Young and Agnes Renny, Young was first elected to the Nova Scotia House of Assembly in 1836 as a Reformer (or Liberal) and, as a lawyer, defended Reform journalists accused of libel. When responsible government was instituted in 1848, Young hoped to become the first Premier but was passed over in favour of fellow reformer James Boyle Uniacke and Young became Speaker. However, Young succeeded Uniacke in 1854.
Document 3: Liberal Party of Australia: The Liberals' immediate predecessor was the United Australia Party (UAP). More broadly, the Liberal Party's ideological ancestry stretched back to the anti-Labor groupings in the first Commonwealth parliaments. The Commonwealth Liberal Party was a fusion of the Free Trade Party and the Protectionist Party in 1909 by the second prime minister, Alfred Deakin, in response to Labor's growing electoral prominence. The Commonwealth Liberal Party merged with several Labor dissidents (including Billy Hughes) to form the Nationalist Party of Australia in 1917. That party, in turn, merged with Labor dissidents to form the UAP in 1931.
Document 4: British Empire: The path to independence for the white colonies of the British Empire began with the 1839 Durham Report, which proposed unification and self-government for Upper and Lower Canada, as a solution to political unrest there. This began with the passing of the Act of Union in 1840, which created the Province of Canada. Responsible government was first granted to Nova Scotia in 1848, and was soon extended to the other British North American colonies. With the passage of the British North America Act, 1867 by the British Parliament, Upper and Lower Canada, New Brunswick and Nova Scotia were formed into the Dominion of Canada, a confederation enjoying full self-government with the exception of international relations. Australia and New Zealand achieved similar levels of self-government after 1900, with the Australian colonies federating in 1901. The term "dominion status" was officially introduced at the Colonial Conference of 1907.
Document 5: Upper Canada Rebellion: The Canadian Alliance Society was reborn as the Constitutional Reform Society in 1836, when it was led by the more moderate reformer, Dr William W. Baldwin. The Reformers experienced a disaster at the 1836 elections for the 13th Parliament of Upper Canada, and the Society took its final form as the Toronto Political Union in 1837. It was this group of the disenfranchised that began organizing local ``Vigilance Committees ''to elect delegates to a so - called Constitutional Convention in July 1837. This became the organizational structure for the Rebellion; most of the rebel organizers were elected Constitutional Convention delegates.
Document 6: History of the Liberal Party of Canada: The Liberals are descended from the mid-19th century Reformers who agitated for responsible government throughout British North America. These included George Brown, Robert Baldwin, William Lyon Mackenzie and the Clear Grits in Upper Canada, Joseph Howe in Nova Scotia, and the Patriotes and Rouges in Lower Canada led by figures such as Louis - Joseph Papineau. The Clear Grits and Parti rouge sometimes functioned as a united bloc in the legislature of the Province of Canada beginning in 1854, and a united Liberal Party combining both English and French Canadian members was formed in 1861.
Document 7: Elizabeth II: In 1977, Elizabeth marked the Silver Jubilee of her accession. Parties and events took place throughout the Commonwealth, many coinciding with her associated national and Commonwealth tours. The celebrations re-affirmed the Queen's popularity, despite virtually coincident negative press coverage of Princess Margaret's separation from her husband. In 1978, the Queen endured a state visit to the United Kingdom by Romania's communist leader, Nicolae Ceaușescu, and his wife, Elena, though privately she thought they had "blood on their hands". The following year brought two blows: one was the unmasking of Anthony Blunt, former Surveyor of the Queen's Pictures, as a communist spy; the other was the assassination of her relative and in-law Lord Mountbatten by the Provisional Irish Republican Army.According to Paul Martin, Sr., by the end of the 1970s the Queen was worried the Crown "had little meaning for" Pierre Trudeau, the Canadian Prime Minister. Tony Benn said the Queen found Trudeau "rather disappointing". Trudeau's supposed republicanism seemed to be confirmed by his antics, such as sliding down banisters at Buckingham Palace and pirouetting behind the Queen's back in 1977, and the removal of various Canadian royal symbols during his term of office. In 1980, Canadian politicians sent to London to discuss the patriation of the Canadian constitution found the Queen "better informed ... than any of the British politicians or bureaucrats". She was particularly interested after the failure of Bill C-60, which would have affected her role as head of state. Patriation removed the role of the British parliament from the Canadian constitution, but the monarchy was retained. Trudeau said in his memoirs that the Queen favoured his attempt to reform the constitution and that he was impressed by "the grace she displayed in public" and "the wisdom she showed in private".
Document 8: Michael Pitfield: Pitfield subsequently obtained a postgraduate degree in public law, and held various positions in the civil service. In 1966, he became assistant secretary to the Privy council and in 1969 secretary of the Division of planification. He became Clerk of the Privy Council of Canada and Secretary to the Cabinet under Prime Minister Pierre Trudeau from 1975 to 1979, and again from 1980 to 1982. Because of his perceived close association with Trudeau and the Liberals, he was replaced during the ministry of Joe Clark, but returned following the 1980 election that returned Trudeau to power.
Document 9: Tim Ralfe: Tim Ralfe (27 October 1938 – 27 October 2000) was a Canadian television journalist for the Canadian Broadcasting Corporation who provoked a controversial moment in Canadian political history. During the October Crisis on 13 October 1970, Ralfe interviewed then-Prime Minister Pierre Trudeau and pointedly questioned Trudeau about the use of the military to protect cabinet ministers and senior officials, and the possible threat that this represented for civil liberties.
Document 10: André Ouellet: With the return to power of the Liberals after the 1993 election, Ouellet was appointed Minister of Foreign Affairs by the new prime minister, Jean Chrétien. Despite his experience, Ouellet was not popular in Quebec, and the lasting legacy of the Charlottetown Accord hurt him. After the close result of the 1995 Quebec referendum, Chrétien wanted to present a new face of his government in Quebec. In 1996, Chrétien appointed Ouellet to head the Canada Post Corporation. Ouellet's seat in the House of Commons of Canada was taken by Pierre Pettigrew in a by-election later that year.
Document 11: 51st state: The phrase is usually used in local political debates, in polemic writing or in private conversations. It is rarely used by politicians themselves in a public context, although at certain times in Canadian history political parties have used other similarly loaded imagery. In the 1988 federal election, the Liberals asserted that the proposed Free Trade Agreement amounted to an American takeover of Canada—notably, the party ran an ad in which Progressive Conservative (PC) strategists, upon the adoption of the agreement, slowly erased the Canada-U.S. border from a desktop map of North America. Within days, however, the PCs responded with an ad which featured the border being drawn back on with a permanent marker, as an announcer intoned "Here's where we draw the line."
Document 12: Ontario Libertarian Party: Ontario Libertarian Party Parti libertarien de l'Ontario Active provincial party Leader Rob Ferguson (interim) President Gene Balfour Founded 1975 (1975) Headquarters Toronto, Ontario Ideology Libertarianism Colours Yellow Website www.libertarian.on.ca Politics of Ontario Political parties Elections
Document 13: Elizabeth II: According to Paul Martin, Sr., by the end of the 1970s the Queen was worried that the Crown "had little meaning for" Pierre Trudeau, the Canadian Prime Minister. Tony Benn said that the Queen found Trudeau "rather disappointing". Trudeau's supposed republicanism seemed to be confirmed by his antics, such as sliding down banisters at Buckingham Palace and pirouetting behind the Queen's back in 1977, and the removal of various Canadian royal symbols during his term of office. In 1980, Canadian politicians sent to London to discuss the patriation of the Canadian constitution found the Queen "better informed ... than any of the British politicians or bureaucrats". She was particularly interested after the failure of Bill C-60, which would have affected her role as head of state. Patriation removed the role of the British parliament from the Canadian constitution, but the monarchy was retained. Trudeau said in his memoirs that the Queen favoured his attempt to reform the constitution and that he was impressed by "the grace she displayed in public" and "the wisdom she showed in private".
Document 14: History of Canada: Starting in the late 15th century, French and British expeditions explored, colonized, and fought over various places within North America in what constitutes present - day Canada. The colony of New France was established in 1534 and was ceded to the United Kingdom in 1763 after the French defeat in the Seven Years' War. The now British Province of Quebec was divided into Upper and Lower Canada in 1791 and reunified in 1841. In 1867, the Province of Canada was joined with two other British colonies of New Brunswick and Nova Scotia through Confederation, forming a self - governing entity named Canada. The new dominion expanded by incorporating other parts of British North America, finishing with Newfoundland and Labrador in 1949.
Document 15: Pierre Trudeau: Trudeau rose to prominence as a lawyer, intellectual, and activist in Quebec politics. In the 1960s he entered federal politics by joining the Liberal Party of Canada. He was appointed as Lester B. Pearson's Parliamentary Secretary and later became his Minister of Justice. Trudeau became a media sensation, inspiring "Trudeaumania", and took charge of the Liberals in 1968. From the late 1960s until the mid-1980s, his personality dominated the political scene to an extent never before seen in Canadian political life. Despite his personal motto, "Reason before passion", his personality and political career aroused polarizing reactions throughout Canada.
ground_truth: 1861
sub_queries: What party did Trudeau enter? Answer: Liberal Party of Canada
when was Liberal Party of Canada formed Answer: 1861