List of National Border Changes From 1815 To 1914 - Oceania

Oceania

• 1857 - Baker Island is annexed by the United States
• 1860 - February 8 - Kingman Reef is informally taken by the United States (it would not be formally annexed until May 10, 1922).
• 1867 - August 28 - Midway Atoll is annexed by the United States.
• 1856 - September 28 - Howland Island is annexed by the United States.
• 1858 - the modern-day Cook Islands unite to form the Kingdom of Rarotonga. February 27 - Jarvis Island is annexed by the United States.
• 1888 - The United Kingdom annexes the Kingdom of Rarotonga which territory later becomes known as the Cook Islands. Nauru is annexed by Germany.
• 1889 - June 3 - Jarvis Island is annexed by the United Kingdom after the United States abandons it.
• 1898 - August 12 - The Republic of Hawaii is annexed by the United States. Guam is ceded from Spain to the United States.
• 1899 - January 17 - Wake Island is annexed by the United States. September 16 - Johnston Atoll is annexed by the United States. The Treaty of Berlin divides the Samoan archipelago between Germany and the United States, respectively creating American Samoa and German Samoa. With the end of the Spanish-American War, Spanish colonies in Oceania are divided; Germany gains the Mariana Islands (except Guam) and the Caroline Islands; Spain cedes Guam to the United States.
• 1901 - January 1 - The state of Australia is formed from six British colonies.
• 1912 - February 21 - Palmyra Atoll is annexed by the United States.