Nuclear Victims Remembrance Day is observed in the Marshall Islands every March 1. This national holiday commemorates the victims and survivors of nuclear testing conducted by the United States in the region during the 1950s. The Marshall Islands were the site of 67 nuclear weapons tests from 1946 to 1958, making it one of the most contaminated places in the world. A significant event was the Castle Bravo test on March 1, 1954, which resulted in fallout that affected residents of the Utirik and Rongelap atolls, leading to many suffering from radiation sickness. The islanders were evacuated only three days after the test. Another notable test, Ivy Mike, occurred on November 1, 1952, and caused the total destruction of Elugelab Island in the Enewetak atoll. Ongoing claims between the United States and the Marshall Islands address the health effects experienced by the islanders due to these tests.