Johnston Atoll was discovered by Americans in 1796, or the British in 1807, and was claimed by both the United States and the Kingdom of Hawaii in 1858 it was not, however, included in the state of Hawaii. U.S. companies exploited the island for guano until the 1880s. A bird sanctuary since the 1920s, the strategic island was under U.S. Navy control from 1934 and Air Force control after 1948, now jointly with the Dept. of the Interior.
In the 1950s and 60s the United States conducted a series of nuclear tests there, causing some radioactive contamination of the atoll the area was also a chemical and biological weapons storage and incineration site. Contaminated soil is now stored in a landfill. Since 2009 it has been part of the Pacific Remote Islands Marine National Monument .
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
See more Encyclopedia articles on: Pacific Islands Political Geography
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