Portuguese explorer Juan Rodríguez Cabrillo discovers Catalina Island off the coast of California.
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The Soviet spacecraft Luna 3 allowed the world to look at the far side of the moon for the first time.
The first-ever infrared photo was taken in Rochester, New York.
Swedish music streaming service Spotify was launched by Daniel Ek and Martin Lorentzon.
The Sonderkommandos, prisoners who took care of the bodies at the Auschwitz-Birkenau Concentration Camp, protested their pending mass murder.
Willem II became King of the Netherlands.
