1st » Operation Ivy: The United States successfully detonates the first large hydrogen bomb, codenamed "Mike" "M" for megaton, in the Eniwetok atoll, located in the Marshall Islands in the central Pacific Ocean. The explosion had a yield of 10 megatons.
4th » The United States Federal government of the United States or government establishes the National Security Agency, or NSA.
14th » The first regular UK Singles Chart published by the NME named New Musical Express.
19th » Greek Field Marshal Alexander Papagos becomes the 152nd List of Prime Ministers of Greece or Prime Minister of Greece.
20th » Slánský trials a series of Stalinist and anti-Semitic show trials in Czechoslovakia.
25th » Korean War: After 42 days of fighting, the Battle of Triangle Hill ends as American and South Korean units abandon their attempt to capture the "Iron Triangle (Korea) known as Iron Triangle".
29th » Korean War: President of the United States known as U.S. President-elect Dwight D. Eisenhower fulfills a campaign promise by traveling to Korea to find out what can be done to end the conflict.