May 9 - Robert Schuman presents his proposal on the creation of an organized Europe, indispensable to the maintenance of peaceful relations. This proposal, known as the "Schuman declaration", is considered to be the beginning of the creation of what is now the European Union.
June 24 - 58 persons were killed when a commercial airliner crashed into Lake Michigan. The reason for the disaster is unknown. Only fragments of the plane and the bodies of passengers were ever found.
June 25 - beginning of Korean War. In the USA, people begun to hoard supplies in case of rationing and shortages.