An unofficial referendum on the sale of the islands to the United States was held in the Danish West Indies on 17 August 1916.[1] The proposal was approved by 99.83% of voters, with only seven people voting against.[1] It followed the Treaty of the Danish West Indies, which was signed on 4 August, and also approved by a referendum in Denmark in December 1916. The islands were transferred to the United States in 1917.
