Bikini Atoll ( BIK-in-ee or bih-KEE-nee; Marshallese: Pikinni [pʲiɡinnʲi], lit. 'coconut place'), known as Eschscholtz Atoll between the 19th century and 1946, is a coral reef in the Marshall Islands consisting of 23 islands surrounding a 229.4-square-mile (594.1 km) central lagoon. The atoll is at the northern end of the Ralik Chain, approximately 530 miles (850 km) northwest of the capital Majuro.
After the Second World War, the atoll was chosen by the United States as a nuclear weapon testing site. It would be the site of the fourth nuclear bomb detonation and would go on to be the site of many more tests. The 167 people who lived on Bikini were instructed to leave so the military could test nuclear bombs, a forced relocation. In 1946 they moved to Rongerik, a small island east of Bikini Atoll, but it turned out to have inadequate resources to support the population. The islanders began experiencing starvation by early 1948 and were moved again to Kwajalein Atoll. The United States used the islands and lagoon as the site of 23 nuclear tests until 1958, when it was discovered that the fallout from nuclear testing was much more dangerous than was previously thought. To this day, the Bikini islanders are prohibited from returning home due to nuclear contamination. There are some signs of recovery as the amount of radiation slowly decreases.