While Karl Marx was writing his major work, Das Kapital, in the family home, his youngest daughter Eleanor played in his study.

The story is significant because it offered Eleanor lessons, by allegory, of the critique of political economy which Marx was writing in Das Kapital.

[12] After that, Eleanor and Edward Aveling, overseen by Friedrich Engels, prepared the first English language edition of Das Kapital volume I, published in 1887.

During her work in the SDF, she met Edward Aveling, with whom she would spend the rest of her life, despite his faithlessness, alleged thievery from the movement, and mental cruelty.

The split had two root causes: personality problems, as Hyndman was accused of leading the SDF in a dictatorial fashion,[3] and disagreements on the issue of internationalism.

[1] Other leaders of the Socialist League were Ernest Belfort Bax, Sam Mainwaring, and Tom Mann, the latter two being representatives of the working class.

Marx wrote a regular column, called "Record of the Revolutionary International Movement", for the Socialist League's monthly newspaper, Commonweal.

She spoke to the Silvertown strikers at an open meeting in November 1889, alongside her friends Edith Ellis and Honor Brooke.

[3] The following year, she toured the United States, along with Aveling and the German socialist Wilhelm Liebknecht, raising money for the Social Democratic Party of Germany.

Marx and Aveling, as firm advocates of the principle of participation in political campaigns, found themselves in an uncomfortable minority in the party.

That resolution was voted down by a substantial margin, as was another put forward by the same branch in support of contesting seats in both local and parliamentary elections.

Moreover, at that meeting, the Socialist League suspended the 80 members of the Bloomsbury branch on the grounds that the group had put up candidates jointly with the SDF, against the policy of the party.

[18] Along with many other leading Socialists, Eleanor Marx took an active role in organizing the London demonstration of 13 November 1887, which was violently suppressed in what became known as Bloody Sunday.

[1] After acquiring admission to the Reading Room of the British Museum, Eleanor first began work as a paid translator during the late 1870s.

A post mortem examination determined the cause of death to have been poison,[30] and a subsequent coroner's inquest delivered a verdict of "suicide while in a state of temporary insanity", clearing Aveling of criminal wrongdoing.

[29] A funeral service was held in a room at the London Necropolis railway station at Waterloo on 5 April 1898, attended by a large throng of mourners.

[31] An urn containing her ashes was subsequently kept safe by a succession of left-wing organisations, including the Social Democratic Federation, the British Socialist Party, and the Communist Party of Great Britain, before finally being buried alongside the remains of Karl Marx and other family members in the tomb of Karl Marx at Highgate Cemetery in London in 1956.

On 9 September 2008, an English Heritage blue plaque was placed on the house at 7 Jews Walk, Sydenham, south-east London, where Eleanor spent the last few years of her life.