The "Progressive Era" of American political reform (1890s through 1920s) brought three populist provisions to the Nevada Constitution: initiative, referendum, and recall. The initiative process enables voters to propose and enact laws by a vote of the people. In 1909 and again in 1911, as required by the constitution, the Nevada legislature passed legislation to provide for initiative petitions to enact new laws. The initiative amendment was approved by the voters at the general election of 1912 by a vote of 9,956 to 1,027.