ted to Parliament on a platform that included votes for women, and in 1869 he published his essay in favour of equality of the sexes The Subjection of Women. Also in 1865, a women's discussion group, The Kensington Society, was formed. Following discussions on the subject of women's suffrage, the society formed a committee to draft a petition and gather signatures, which Mill agreed to present to Parliament once they had gathered 100 signatures. In October 1866, amateur scientist Lydia Becker attended a meeting of the National Association for the Promotion of Social Science held in Manchester and heard one of the organisors of the petition, Barbara Bodichon, read a paper entitled Reasons for the Enfranchisement of Women. Becker was inspired to help gather signatures around Manchester and to join the newly formed Manchester committee. Mill presented the petition to Parliament in 1866, by which time the supporters had gathered 1499 signatures, including those of Florence Nightingale, Harriet Martineau, Josephine Butler and Mary Somerville. In March 1867, Becker wrote an article for the Contemporary Review, in which she said: "It surely will not be denied that women have, and ought to have, opinions of their own on subjects of public interest, and on the events which arise as the world wends on its way. But if it be granted that women may, without offence, hold political opinions, on what ground can the right be withheld of giving the same expression or effect to their opinions as that enjoyed by their male neighbours?" Two further petitions were presented to parliament in May 1867 and Mill also proposed an amendment to the 1867 Reform Act to give women the same political rights as men, but the amendment was treated with derision and defeated by 196 vote