Argentina and Brazil absorbed millions of immigrants who brought both the breadwinner family and the radical politics to challenge it. Feminists built a sophisticated women's movement while an oligarchic Senate buried every suffrage bill. In 1947 a populist regime granted in weeks what the movement had not won in decades, with conditions attached.
Historians disagree whether the 1947 law was liberation or co-optation, and whether credit belongs to Evita's campaign, Peron's calculation, or fifty years of movement groundwork. Party membership figures are also uncertain.