Question: Ed Miliband became a member of what in 2005?

Context paragraphs:
Peter Hain: Peter Gerald Hain, Baron Hain, PC (born 16 February 1950) is a British Labour Party politician, who was the Member of Parliament (MP) for Neath between 1991 and 2015, and served in the Cabinets of both Tony Blair and Gordon Brown.  He was the Leader of the House of Commons from 2003 to 2005 and Secretary of State for Northern Ireland from 2005 to 2007 under Blair, and as Secretary of State for Work and Pensions and Secretary of State for Wales from 2007 to 2008 under Brown.  In 2007, he ran for the Deputy Leadership of the Labour Party, coming fifth out of six candidates, although his failure to declare donations during this contest led to his resignation in 2008.  He later returned to the Cabinet from 2009 to 2010 as Welsh Secretary, before becoming Shadow Welsh Secretary in Ed Miliband's Shadow Cabinet from 2010 until 2012, when he announced his retirement from front-line politics.  In 2014 he announced he would stand down as the MP for Neath at the 2015 general election.  He was nominated for a life peerage in the 2015 Dissolution Honours.  Writing in the "Guardian", he subsequently outlined his views on House of Lords reform.  He came to the UK from South Africa as a teenager, and was a noted anti-apartheid campaigner in the 1970s.  He was also Honorary Vice-President of the Campaign for Homosexual Equality.  Peter Hain is on the board of African Potash, a company with a focus on building a vertically integrated platform for the mining, production and distribution of fertiliser.

Ed Miliband: Edward Samuel Miliband (born 24 December 1969) is a British politician who was Leader of the Labour Party as well as Leader of the Opposition between 2010 and 2015.  He became the Member of Parliament (MP) for Doncaster North in 2005, being re-elected in 2010, 2015, and 2017, and served in the Cabinet from 2007-10 under Prime Minister Gordon Brown.

David Miliband: David Wright Miliband (born 15 July 1965) is a British Labour Party politician, charity chief executive and public policy analyst who was the Secretary of State for Foreign and Commonwealth Affairs from 2007 to 2010 and the Member of Parliament (MP) for South Shields from 2001 to 2013.  He and his brother, Ed Miliband, were the first siblings to sit in the Cabinet simultaneously since Edward, Lord Stanley, and Oliver Stanley in 1938.

Marion Kozak: Marion Kozak or Marion Kozak Miliband (born 1934 as Dobra Jenta Kozak, also known as Maria Kozak) is a Polish-born British activist.  She emigrated to the United Kingdom in the 1950s.  In 1961 she married Ralph Miliband (1924–1994) and their two sons, David Miliband and Ed Miliband, have risen to prominence in modern-day British politics.

Ed Miliband bacon sandwich photograph: A photograph of former British Labour Party leader Ed Miliband eating a bacon sandwich was the source of sustained commentary in 2014 and 2015.  Taken for the "Evening Standard" newspaper while Miliband was campaigning in local elections in May 2014, it was said by some to make him look awkward, error prone, incapable of performing simple tasks, or out of touch with ordinary working people.  It sparked several internet memes, both supportive and mocking, and fueled a debate about the lengths to which politicians attempt to control their public image.  Miliband dismissed the debate, arguing it was unimportant, and others, including opponents, described the media focus on it as unfair or part of a wider negative personality-based media campaign.  The photo was used in a mocking front page of ""The Sun"", the UK's most widely read newspaper, on the day before the May 2015 general election.

One Nation Labour: One Nation Labour refers to the theme and branding of the British Labour Party adopted by the party in 2012 under the leadership of Ed Miliband.  Miliband described the "One Nation" term as being related to British Conservative Prime Minister Benjamin Disraeli's idea of One Nation conservatism.  Disraeli claimed a need for government to reduce economic inequality, which he believed was splitting Britain into two nations of rich and poor people.  Miliband stated that the theme of One Nation was shared by Labour Prime Minister Clement Attlee.  Miliband has declared inspiration from Disraeli's and Attlee's One Nation theme, in that it challenges social barriers of class and promotes the unity of Britain.

Shadow Cabinet of Ed Miliband: Ed Miliband became Leader of the Labour Party and Leader of the Opposition upon being elected to the former post on 25 September 2010.  The election was triggered by Gordon Brown's resignation following the party's fall from power at the 2010 general election, which yielded a Conservative – Liberal Democrat Coalition.  Miliband appointed his first Shadow Cabinet in October 2010, following the Labour Party's Shadow Cabinet elections.  These elections were the last such elections before they were abolished in 2011.

Review of the Labour Party in Scotland: The Murphy and Boyack review was a report compiled by Jim Murphy and Sarah Boyack on the future structure of the Labour Party in Scotland, in response to the landslide victory by the Scottish National Party in the Scottish general election of 2011.  The report was presented to party leader Ed Miliband in the autumn of 2011, and was subject to approval by the British Labour Party Conference.

Polly Billington: Polly Billington (born 1967) is a former BBC journalist who worked on the "Today" programme before becoming a special advisor to Ed Miliband.  She was the media director for his successful bid in the 2010 Labour leadership election.  Billington was the Party's parliamentary candidate for Thurrock at the 2015 general election and a Labour Party official; she no longer works for Ed Miliband.

Second Shadow Cabinet of Harriet Harman: Harriet Harman's second Shadow Cabinet was formed by Harriet Harman in 2015 during her second period as acting Leader of the Labour Party.  She assumed this role after Ed Miliband resigned as party leader (and Leader of the Opposition) and announced she would continue until a new leader was elected on 12 September 2015.  Miliband's resignation followed the party's defeat at the 2015 general election.

Supporting paragraphs: Review of the Labour Party in Scotland Ed Miliband
Answer: Member of Parliament