Easter Island

On September 9, 1888, Chile's annexed Easter Island under the "Annexation Treaty."

An excerpt from the article 29 facts about Easter Island
The Chilean government, represented by Chilean naval officer Policarpo Toro, signed the treaty with Atamu Tekena, appointed king of Rapa Nui by Catholic missionaries after the death of the paramount chief and his successor. The Chileans leased the island to a British company, which established a sheep farm on it.