Operation Crossroads was a pair of nuclear weapon tests conducted by the United States at Bikini Atoll in mid-1946. They were the first nuclear weapon tests since Trinity on July 16, 1945, and the first detonations of nuclear devices since the atomic bombing of Nagasaki on August 9, 1945. The purpose of the tests was to investigate the effect of nuclear weapons on warships.
Crossroads Able is the first postwar nuclear weapon test.
On July 1, in the year 1946, Crossroads Able is the first postwar nuclear weapon test. This event is recorded as a Historical Events event in the history of July 1, one of 534 recorded events on this date across all of history.
Key Facts
- This event took place on July 1, 1946 (AD era).
- It is categorised as a Historical Events event in recorded history.
- Referenced in 1 Wikipedia article.
- Wikipedia source last updated on 17 June 2026.
On This Date in History 534
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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