Although this thought existed, Socialism in Argentina started in the 1890s with the formation of the 'Socialist party" in 1896. The party was formed on the basis that there was a greater need for 'social focus'. The leader of this group, Juan B. Justo saw this absence and with Nicolas Repetto they led the party. In 1904, Alfredo palacios a member of the Socialist party was to become the first socialist deputy in Argentina. Argentina during WW-I didn't experience the same hardships as other Latin American nations, in part due to their leadership by President Hipólito Yrigoyen. This hallmark election ended the period of conservative powers holding power. After WWI, there was a large anarchist movement in which many emigrants from Europe arrived in Argentina. This arrival of immigrants catalysed a new brand of left-wing activism. In particular, there was a rejection of the previous Socialist way in which Argentina was run, and a movement towards anarchism. This period brought much unrest, and conflict surrounding what ideology would best frame the nation of Argentina. Acts of violence such as the attempted assassination of U.S. President Herbert Hoover in 1928. In 1922 with the rise of The Argentina Right, the works of Marcelino Menendez played a large role in influencing their philosophies and ideas. Also in this year, the famous speech titles "the time of the sword" was delivered to future dictator Agustin P. Justo. The main premise of the speech was its call for a coup d'etat and the replacement of the political system with military dictatorship. This era known as the "infamous decade" has attracted great attention for its ideological, social and political dimensions. The military coup in 1930 forced Hipólito Yrigoyen from presidency, and emplaced José Félix Uriburu. Uriburu was overthrown by Jose. After gaining presidency, Uriburu made efforts to institute reform through incorporating corporatism to the Argentina Consitution, which was seen as a move towards fascism.> This move split alliances, and resulted in support shifting towards Agustin P. Justo. Justo took a different political stance, starting a policy of liberal economic moves that primarily benefitted the nation's upper classes and permitted great political and industrial corruption at the expense of national growth. One of the most infamous decisions of Justo's government was the creation of the Roca–Runciman Treaty between Argentina and the United Kingdom, which benefitted the British economy and the rich beef producers of Argentina.