[8] The first issue of the relaunched paper did not have advertisements on the front page as previously, but instead news text and engraved pictures (of a traitor and an actress), with the promise of photographs inside.

[14] Circulation continued to grow: in 1919, some issues sold more than a million copies a day, making it the largest daily picture paper.

Lord Rothermere was a friend of Benito Mussolini and Adolf Hitler, and directed the Mirror's editorial stance towards them in the early 1930s.

[20] Partly on the advice of the American advertising agency J. Walter Thompson, the Mirror became the first British paper to adopt the appearance of the New York tabloids.

During the Second World War the Mirror positioned itself as the paper of the ordinary soldier and civilian, and was critical of the political leadership and the established parties.

At one stage, the paper was threatened with closure following the publication of a Philip Zec cartoon (captioned by William Connor), which was misinterpreted by Winston Churchill and Herbert Morrison.

When it failed to win readers, The Sun was sold to Rupert Murdoch – who immediately relaunched it as a more populist and sensationalist tabloid and a direct competitor to the Mirror.

The ambitious brief for the supplement, which ran on Wednesdays and Fridays, was to deal with international affairs, politics, industry, science, the arts and business".

[29] Following Maxwell's death in 1991, David Montgomery became Mirror Group's CEO, and a period of cost-cutting and production changes ensued.

During the trial it emerged that Morgan had bought £67,000 worth of Viglen shares, emptying his bank account and investing under his wife's name too.

Under then-editor Piers Morgan, the newspaper's editorial stance opposed the 2003 invasion of Iraq, and ran many front pages critical of the war.

[35] Morgan was fired from the Mirror on 14 May 2004 after authorising the newspaper's publication of photographs allegedly showing Iraqi prisoners being abused by British Army soldiers from the Queen's Lancashire Regiment.

[41][42] In 2018, Reach plc acquired the Northern & Shell titles, including the Daily Express, which led to a number of editor moves across the stable.

[45] On the day of the 1979 UK general election, the Daily Mirror urged its readers to vote for the governing Labour Party led by James Callaghan.

[46] The Mirror's continued support of the Labour government was in spite of its falling popularity over the previous few months which had been partly as a result of what was labelled by the Daily Mail the "Winter of Discontent", where the country was crippled by numerous public sector strikes.

[47] By the time of the 1983 UK general election, Labour support was at a postwar low, partly due to the strong challenge by the recently formed SDP–Liberal Alliance.

[48] However, the Conservatives were re-elected and Labour suffered its worst postwar general election result, only narrowly bettering the SDP–Liberal Alliance in terms of votes whilst winning considerably more seats.

[46] At the 1987 UK general election, the Daily Mirror remained loyal to Labour, led by Neil Kinnock, and urged its readers with the slogan "You know he's right, chuck her out.

The outcome of this election had been far less predictable than any of the previous three elections, as opinion polls over the previous three years had shown both parties in the lead, although any Labour lead in the polls had been relatively narrow since the Conservative government's change of leader from Thatcher to Major in November 1990, in spite of the onset of the early 1990s recession which had pushed unemployment up again after several years of decline.

Labour's credibility was helped by plans including extra National Health Service (NHS) funding and moving away from firm commitments on re-nationalisation to reverse the Conservative policy of privatisation, but its decision to be up-front about tax increases was seen as a key factor in its failure to win.

[50] By the time of the 1997 UK general election, support for the Labour Party, by then led by Tony Blair, in the opinion polls had exceeded that of support for the Conservative government led by John Major since late 1992, whose reduced popularity largely blamed on the failings of Black Wednesday in September of that year and it had failed to recover popularity in spite of a strong economic recovery and fall in unemployment.

The headline read "How to stop him" in reference to the 2010 UK general election two days later, confirming the Daily Mirror's Labour allegiance.

The election ended in Britain's first hung parliament since 1974 but Cameron still became prime minister within days as the Conservatives formed a coalition with the Liberal Democrats.

The Daily Mirror was the only leading national newspaper to remain loyal to Labour and Gordon Brown at a time when opinion polls showed the party on course for their worst election result since 1983.

[63] This was done as a marketing exercise with Pepsi-Cola, who on the same day had decided to relaunch its cans with a blue design instead of the traditional red and white logo.