Hipólito Yrigoyen was an Argentine politician who served as the President of Argentina twice, first from 1916 to 1922 and then from 1928 to 1930. He was a key figure in the Radical Civic Union, a political party that aimed to represent the interests of the middle class and promote social reforms. Yrigoyen's presidency is noted for expanding suffrage and implementing progressive policies. Yrigoyen's leadership faced challenges, including economic difficulties and political opposition. His second term ended with a military coup in 1930, which marked the beginning of a series of authoritarian regimes in Argentina. Despite this, he remains a significant figure in Argentine history for his contributions to democracy and social justice.