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{{Update History}}
__NOEDTISECTION__
added events
==Events==
=== Science ===* ''None yet''The "Parícutin volcano", after appearing suddenly in [[1943]], ceases its discontinuous eruption. <br> It has, at this point, spewed a gigaton of lava, and has significantly damaged more than 233 square kilometers. * [[Europe|United Kingdom]] Prime Minister Winston Churchill announces that the country has an [[Nuclear Fission|atomic bomb]].:* The first British [[Nuclear Fission|nuclear weapon]] is detonated in Australia, making the United Kingdom the third nuclear weapons state. * The [[United States of America|United States]] successfully detonates the first [[Nuclear fusion|hydrogen bomb]] in the central Pacific Ocean, with a yield of 10.4 megatons. === Medicine ===* Dr. C. Walton Lillehei and Dr. F. John Lewis perform the first open-[[heart]] surgery. * The first successful sex reassignment surgery is performed, allowing George Jorgensen Jr. to physically become Christine Jorgensen. * The first successful surgical separation of Siamese twins is conducted. * Dr. Virginia Apgar devises the Apgar score as a simple replicable method of quickly and summarily assessing the health of babies immediately after childbirth.
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