Einstein Publishes the Paper That Introduces E=mc2
On September 27, 1905, Einstein's paper on mass and energy was published, introducing the relation E=mc squared.
Leo Szilard Conceives the Nuclear Chain Reaction
On September 12, 1933, Leo Szilard conceived the nuclear chain reaction while crossing a street in Bloomsbury, London.
The Convention Establishing CERN Is Signed
On September 29, 1954, twelve countries signed the convention establishing CERN, the European particle physics laboratory near Geneva.
The United States Conducts Its First Underground Nuclear Test
On September 19, 1957, the US fired Rainier, its first fully contained underground nuclear test, in a tunnel in Nevada.
The USS Enterprise, First Nuclear-Powered Aircraft Carrier, Is Launched
On September 24, 1960, the USS Enterprise was launched at Newport News, the first nuclear-powered aircraft carrier in the world.
China Tests a Nuclear-Armed Missile
On October 27, 1966, China carried out its first flight test of a nuclear-armed missile, which detonated at its target in the west.
The United States and North Korea Sign a Nuclear Agreement
On October 21, 1994, the United States and North Korea signed the Agreed Framework in Geneva to freeze the North Korean nuclear programme.
The Large Hadron Collider Is Powered Up
On September 10, 2008, the Large Hadron Collider at CERN ran its first beam around its 27 km ring, starting the biggest physics experiment.