Question: On what date did a Canadian politician born January 2, 1979, succeed as leader of the New Democratic Party in Canada? 

full_context: Document 1: Liberal Democrats leadership election, 2007: The 2007 Liberal Democrats leadership election was held following the resignation of Sir Menzies Campbell as leader on 15 October 2007, after 19 months as leader of the Liberal Democrats, the third-largest political party in the United Kingdom. Vincent Cable, the deputy leader of the parliamentary party, was acting leader until the conclusion of the leadership election. The result was announced on 18 December 2007 with Nick Clegg winning by a narrow margin of 1.2%.
Document 2: Liberal Democrats leadership election, 2006: In the 2006 Liberal Democrats leadership election, Sir Menzies Campbell was elected to succeed Charles Kennedy as Leader of the Liberal Democrats, the third-largest political party in the United Kingdom.
Document 3: Alexa McDonough: Alexa Ann McDonough, {'1': ", '2': ", '3': ", '4': "} (née Shaw; born August 11, 1944) is a Canadian politician who became the first woman to lead a major, recognized political party in Canada, when she was elected the Nova Scotia New Democratic Party's (NSNDP) leader in 1980. She served as a member of the Nova Scotia Legislature from 1981 to 1994, representing the Halifax Chebucto and Halifax Fairview electoral districts. She stepped down as the NSNDP's leader and as a member of the legislature in 1994. She subsequently ran for, and was elected, leader of the federal New Democratic Party (NDP) in 1995. McDonough was elected the Member of Parliament (MP) for the federal electoral district of Halifax in 1997. She stepped down as party leader in 2003, but continued to serve as an MP for two more terms, until 2008, when she retired from politics altogether. In 2009 she became the interim president of Mount Saint Vincent University and was appointed an Officer of the Order of Canada in December of that year.
Document 4: Jagmeet Singh: Jagmeet Singh Jimmy Dhaliwal {'1': ", '2': ", '3': ", '4': "} (born January 2, 1979), known professionally as Jagmeet Singh ( ), is a Canadian politician who is leader of the New Democratic Party.
Document 5: Social Credit Party of Canada: The Social Credit Party of Canada (French: Parti Crédit social du Canada ), colloquially known as the Socreds, was a conservative-populist political party in Canada that promoted social credit theories of monetary reform. It was the federal wing of the Canadian social credit movement.
Document 6: Jaimal Singh Padda: Jaimal Singh Padda was a poet, communist activist. He was shot dead on 17 March 1988 in Lakhan ka Padda village, Kapurthala district by Khalistan movement extremists. He was filmed reciting his poem Una Mitterandi Yaad Pyari, before his death, by Anand Patwardhan in his documentary Una Mitterandi Yaad Pyari.
Document 7: Nova Scotia New Democratic Party: The Nova Scotia New Democratic Party is a social-democratic provincial party in Nova Scotia, Canada. It is aligned with the federal New Democratic Party (NDP). It was founded as the Co-operative Commonwealth Federation (CCF) in 1932, and became the New Democratic Party in 1961. It became the governing party of Nova Scotia following the 2009 Nova Scotia election. It is the first New Democratic Party in Atlantic Canada to form a government. Much of the party's success prior to the 2009 election was based in the urban areas of the provincial capital, Halifax However, the party's support has grown to the rest of Nova Scotia.
Document 8: Andy Burnham Labour Party leadership campaign, 2015: Andy Burnham Labour Party leadership campaign, 2015
Document 9: Guy Caron: Guy Caron (born May 13, 1968) is a Canadian politician, who was elected to the House of Commons of Canada in the 2011 election. He represents the electoral district of Rimouski-Neigette—Témiscouata—Les Basques as a member of the New Democratic Party (NDP). He was the NDP's critic for Finance and the Atlantic Canada Opportunities Agency, but resigned from the NDP's shadow cabinet in February 2017 to pursue leadership of the New Democratic Party of Canada.
Document 10: Carole James: Carole Alison James, MLA (born December 22, 1957) is a Canadian politician and former public administrator. She is the MLA for the Victoria-Beacon Hill electoral district. She is the former Leader of the Opposition in British Columbia and former leader of the British Columbia New Democratic Party (NDP), a social democratic political party. She announced her intention to resign as leader on December 6, 2010 and was officially replaced by interim leader Dawn Black on January 20, 2011.
Document 11: Pankaj Singh (politician): Pankaj Singh (born 12 December 1978) is an Indian politician who is currently working as General Secretary-BJP, Uttar Pradesh. He is the elder son of Home minister Rajnath Singh. Pankaj Singh has been active in politics since 2002. He is a politician in Uttar Pradesh. of Bharatiya Janata Party, Uttar Pradesh.Presently he is MLA of BJP from Noida Legislative assembly seat. On March 11, he won the Noida constituency in the 2017 State Assembly Elections.
Document 12: Socialist Democratic Party (India): The Socialist Democratic Party was a short-lived political party in Andhra Pradesh, India. The SDP was founded on 20 May 1959 through the merger of the Democratic Party and the Socialist Unity Faction. The founding convention of the party took place in Tenali. A 37-member executive leadership was elected. P.V.G. Raju was elected as party chairman, Bommakanti Satyanarayana as general secretary and Marri Chenna Reddy as leader of the Legislature Party.
Document 13: Ujjwal Raman Singh: Ujjwal Raman Singh is an Indian politician and a member of 17th Legislative Assembly of Uttar Pradesh of India. He represents the Karchana constituency of Uttar Pradesh and is a member of the Samajwadi party. His father Rewati Raman Singh is a member of the Rajya Sabha and a senior leader of Samajwadi Party. His father was elected as member of legislative assembly of karchhana constituency more than seven times and also got elected as member of parliament twice from Allahabad.
Document 14: New Democratic Party: The New Democratic Party (NDP; French: "Nouveau Parti démocratique" , "NPD") is a social democratic political party in Canada. The leader of the federal wing of the NDP is Thomas Mulcair, who was elected in the 2012 leadership election. He led the party through the 2015 federal election, and then lost a party leadership review on April 10, 2016. He was suceeded as leader by Jagmeet Singh, who won the 2017 leadership election on October 1st, with 53.8% of the vote.
Document 15: Justin Trudeau: Justin Pierre James Trudeau (born December 25, 1971) is a Canadian politician. He is the 23rd and current Prime Minister of Canada and leader of the Liberal Party. The second youngest prime minister after Joe Clark, he is also, as the eldest son of former Prime Minister Pierre Trudeau, the first to be related to a previous holder of the post.
ground_truth: October 1st