A woman wearing a mask with the slogan Not one less embraces a fellow demonstrator during a protest against femicide in Buenos Aires. Photograph: Marcos Brindicci/Reuters
A year on, there is still a long way to go in terms of government action and public awareness.
Theres been no drop-off in the number of cases, says Ojeda, and the government has still to respond to most of our demands.
Among those marching will be Jorge Taddei and Beatriz Regal, whose daughter, Wanda, was among the most high-profile victims.
Her husband was Eduardo Vzquez, the drummer of Callejeros, one of the most famous rock acts in Argentina. The marriage was far from idyllic. Vzquez physically abused his wife on repeated occasions. Finally, in the middle of a heated discussion, Vzquez threw alcohol at Taddei, grabbed a lighter and set her on fire. Taddei died from the burns caused by his attack 11 days later, unable to relate what had happened to her.
It was hoped that Taddeis horrific death, in the early hours of 10 February 2010, would be a turning point. Gender violence remained an open secret until the judges in the Taddei case reduced Vzquezs sentence, ruling that his crime had been committed in a fit of passion. Although a higher court later sentenced Vzquez to life imprisonment, the public outcry was so loud that Congress changed the law to exclude violent emotion as an attenuating circumstance in crimes against women.
But the public clamour and the changing of the law had no immediate effect on the number of gender crimes. On the contrary: in the three years after Taddeis death, 132 women were set on fire by men, half of them dying as a result of the attacks, in what came to be known as the Wanda Taddei effect. In the two years before Taddeis death, there had been only nine reported cases.
Those marching on Friday are well aware that progress in Argentinas macho-dominated society is glacially slow. Nothing changed since last year, Taddeis father said in an interview published by the Buenos Aires daily La Nacin this week. And its not going to change in one year, or two, or 10 or 20. Its only going to change when the paradigm of this macho, patriarchal society shifts.
Meanwhile, Ojeda and her group of female journalists are launching a survey of gender violence in Argentina to coincide with Fridays march.
It will be an anonymous, web-based survey, where women will be able to answer multiple-choice questions regarding not only physical violence, but also psychological violence, discrimination and the quality of natal care at public hospitals, which is an enormous problem that poorer women face in the provinces of deep Argentina, where pregnant women are often treated like cattle, says Ojeda. We need this survey because killings are just the last step in a long crescendo that includes discrimination and psychological abuse.
Additional reporting by Shanna Hanbury