Iceland was given home rule in October 1903. In December 1918, Iceland was brought into a personal union with the King of Denmark. It was set so that after 25 years, the country could choose to leave the union. The Althing was given unlimited legislative power. The king no longer had any law-making powers in the country. The number of members of the Althing was increased to 42 in 1920, and to 52 in 1942.