In a trial lasting less than 90 minutes, German–British physicist Klaus Fuchs was convicted of violating the Official Secrets Act by supplying information from the Manhattan Project to the Soviet Union.
The Kronstadt rebellion began following mass protests in Petrograd demanding greater freedom in Russia with sailors and citizens taking up arms against the Bolsheviks.
The Australian cricket team, led by Warwick Armstrong, became the first team to complete a whitewash in the Ashes, an achievement that would not be repeated for 86 years.