- 
  
  Roman Emperor Caracalla is assassinated. He is succeeded by Marcus Opellius Macrinus
 - 
  
  Roger II, King of Sicily, is excommunicated due to him not establishing a buffer state between southern Italy and the Papal States
 - 
  
  The Venus De Milo statue, one of the most famous greek statues, is discovered on the Aegean Island of Milos
 - 
  
  Union forces are defeated by the Confederate army in Mansfield, Louisiana
 - 
  
  Dutch physicist Heike Kamerlingh Onnes discovers superconductivity, the phenomenon of magnetic fields occurring in objects cooled below certain temperatures
 - 
  
  The soviet forces, in order to help protect Leningrad, open up a much needed railway
 - 
  
  South African Airways Flight 201 crashes into the sea killing 21 people
 - 
  
  Gemini 1, the test rocket for the Gemini series, is launched
 - 
  
  Over Four million people attend the funeral of Pope John Paul II
 - 
  
  France and Britain sign the Entente Cordiale, forming the alliance that would fight against Germany in WW I