 Significant legislation signed into law by Governor Strong included the granting of United States citizenship to members of the indigenous population that gave up tribal life, implementation of workers' compensation and the United States' first old age pension, authorization of a territorial university, and creation of a Board of Education.Additionally, in 1917, the voters in the territory approved a prohibition referendum.Other changes affecting the territory was the authorization for construction of the Alaska Railroad in October 1914, loosening of federal controls on road building and coal mining, and creation of Mount McKinley National Park in 1917.